Ask your grandmother, or Gloria Gaynor, how big disco was. These days disco is small enough to carry in your coat pocket. This disco light has (6) red/green/blue LEDs pulsing under a clear prismatic hemisphere that spins approx 3 rpm. You add (3) “AA” batteries for power, and then go shake your booty. Measures 3-5/8” dia (the disco light, not your booty) x 3-1/2” tall with a 1/8” mounting hole on the bottom.

More goose-sized than chicken-sized at 3-3/4" tall x 2-3/4" max dia, this soft, translucent-rubber egg glows with color. It can be set to stay one hue, or to change very slowly from purple through blue, green, orange and red to purple…. Very Zen. Or very cute in an Easter basket. Runs on (3) replaceable button-cell batteries, included.

Jumbo blacklight measures 10-1/2" long x 2-1/2" x 1-3/4" and holds an 8" UV fluorescent tube plus a white LED flashlight on one end. Adjustable strap extends to 22" or lays flat. Takes (3) D-cell batteries. A must-have for security or crime scenes, but don't shine it on the furnishings in your hotel room if you don't want to be disappointed.

The Shape of Cool™ is trademarked. Really. And its owner is Lava® brand lamps. Accept no substitutes, we always say. Usually. Sometimes. Certainly in this case. This Lava® Lamp is 14-1/2" tall with a silvery aluminum stand and tip. It may have clear liquid with red lava; purple liquid with pink lava; or blue liquid with either yellow or purple lava. All classic Lava® colors, so we know you’ll like the one we pick out for you! All include a 25W bulb in the base. UL.

Twist the barrel of this green laser pointer and watch the diffraction lens multiply the dots and spin them in fascinating kaleidoscopic patterns. Perfect for rave parties, DIY discos, or getting kicked out of movie theaters. Guaranteed to make a cat at least schizophrenic. Measures just over 6" long and requires (2) "AAA" batteries which you will have to supply because your cat hasn't learned how to drive yet. 

Our each is a pack of (10) common cathode 5mm dia red/green/blue LEDs. Clear lens, 20mA rated for 100K hour life. 3V supply will work for all. You also get 100 Ohm and 510 Ohm resistors to step down 5 and 12VDC respectively. Luminous intensity is 4,000 mcd.

Don't hide this light under a bushel. Probably couldn't anyway, since it features (24) flashing, spinning, pulsing red, green and blue LEDs. It cycles through a variety of different patterns, looks like it came from outer space, is black or translucent white (we'll pick) and plugs into the wall via a 3-foot power cord. Mounts via (2) keyed mounting slots on the back. Measures 5" dia x 1-3/8" tall at the center. Rated for 8,000 hours of flashing fun. Click here to check out our Facebook post to see it in action.

These itsy 120V neon lamps have negligible current draw and green sleeves over the lenses. Leads are 4-1/2" long with an inline limiting resistor on one. Made in the USA.

Ten electrical leads with an alligator clip on each end. Each lead is about 20" long, not counting the 'gators. Vinyl coated 20-22 ga. wire with a vinyl cover over each clip. They come in an assortment of five colors with two leads in each color. The manufacturer calls them heavy duty but we would restrict them to the light currents and low voltages you will be using in your home experiments. Our each is a set of (10).

A failed folk-rock group from the Summer of Love? No, a trio of pretty lepidoptera oscillating through many colors via the magic of fiber optics. They have a 3" wingspread and sit on a 1-1/2" dia base that holds the (3) included and replaceable button-cell batteries inside. You'll get (3), at least (2) different, along with self-adhesive tape to stick them somewhere. We like them as party lights, but they'd also be great on a hat.

You move too fast. You got to make the mornin' last, sport, or you've got no chance at all of feelin' groovy. The Groovy Lamp is LavaLampish, but with clearer fluid that's not quite so goopy, but considerably more, well, groovy. Stands 13-1/4" tall on a 3-3/8" base and draws 25W. Has an in-line switch and 6-foot cord, and we'll pick a blue, green, purple or orange one for you. UL.

This panel-mount, grounded outlet from Eagle Electronics is rated for up 15A at 125V, and measures 1” square. You’ll need 1-1/2” clearance on the back. Has a pair of retaining clips, (2) spade terminals and a ground screw. UL/CSA.

Neatness definitely counts. Even in wiring. Especially in wiring. End those electrical mare's nests with this 6-position barrier strip, rated for up to 30A at 600V. Comes with a clear plastic cover with access to the screw terminals and measures 3-5/8" x 1-1/4" x 5/8" with a 5/16" mounting hole at each end. Terminals are in pairs.

Hang this super-bright little work light by the carabinerish hook on one end. The side has a 16-element COB LED rated at 220 lumens, plus a 1W 45-lumen LED on the bottom. The whole thing measures 6" x 2" x 1" in matte black with small highlights in orange, yellow, blue or green, and we’ll pick one to match your eyes. Includes a trio of “AAA”s.

Our laser combo pack scores you two pen-shaped 5mW laser pointers, (1) each in stopping red and going green. These colors are also perfect for Christmas, St. Patrick's Day and St. Valentine's Day. Oh, and nautical situations. The housing is flat black or silver with a gold pocket clip and head. The 532nm Class IIIa green light is 5-5/8" long x 1/2" dia, with a momentary-on switch. It's brighter than the red so it's perfect for all daytime pointer needs. The red is 5-1/4" long, and its mellow red light makes it more suitable for board room presentations but we've thrown ours two blocks at night, no problem. Green or red, whatever you do, don't cross the streams. Each pointer takes (2) "AAA" batteries, which are included.

This 4-3/4" dia moon is so much more interesting than the real thing. This one has a 4-way dimmer, flash/strobe/fast and slow fade/steady-on modes, plus internal LEDs to make (15) colors in addition to traditional moonish white. It's also a great nightlight. Remote control comes with a battery but you'll need (3) "AAA" batteries to run the moon. Topographical, but the giant astronaut footprint suggests it's not quite to scale. Will sit up by itself or wall mount on a couple of finishing nails.

This little light of ours has three functions and still fits in your pocket. Just 5” long in a black aluminum housing, it has a red laser, a 5-LED UV light and a bright white 10-LED standard flashlight. You add a trio of “AAA” batteries, thoughtfully linked here, and Bob’s your uncle, or at least your brother-in-law.

This tiny 3 mm LED sits in a 5/32" x 1/4" x 7/32" black-plastic box with PC board mounts. At 2-3 volts it glows green and draws 40 mA.