Here’s another classic heat-sensitive coffee mug, this one with a Dia de los Muertos theme. Pour in the joe and watch the black silhouettes turn into skeletal dancers and musicians. You never knew drinking coffee, tea or hot chocolate could be this fun. In red with multicolor characters. Holds 12 oz.

Trouble keeping your geologic eras straight? We feel your Paleozoic pain. This colorful 12-oz ceramic mug has a graphic timeline wrapped around it illustrating the Pre-Cambrian era up through Paleozoic, Mesozoic, and Cenozoic periods. And if you’re a good geology student, and finish all your coffee, you’ll see an impression of a trilobite fossil in the bottom of the cup. Microwave and dishwasher safe.

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We’ll say. Herr Erlenmeyer of flask fame was handled Richard August Carl Emil Erlenmeyer, but you can call him Emil. Our Borosilicate glass version of his flask holds 500ml, and is graduated from 200ml to 400ml in 50ml increments. Stands 3-3/4” tall with a 4-1/4” dia bottom narrowing to 2-1/2” at the top, which also makes it a hard-to-spill coffee cup.

In the lab or kitchen, these clear borosilicate glass mugs have a handle and lip and remind you that science is part of your every day. The smaller 4-1/2" 400mL one has graduations in 50mL increments and the larger 6" 1000mL one in 100mL increments with numeric markings every 100mL or 200mL accordingly; both with more room before you have to worry about spilling. May come with a pour spout on the side opposite the handle which won't affect your beverage consumption but will make it easier to water your favorite house plant. Not intended for serious lab use as the volumes are approximate. Remember to ask for 236.5ml of coffee the next time you visit your favorite diner.

Puns-R-Us. This white coffee mug has pi-Lingual printed on it, along with a bevy of geometric diagrams and equations, plus pi carried to 50 decimal places. Try not to use while eating a piece of pie, because there are some limits to what people will tolerate.

Our squishable silicone coffee cup looks like the takeaway cups you get at coffee shops, complete with the slide-up cuff that keeps your fingers from burning or freezing. Now you can drink your frappalattes or milkshakes out of reusable silicone instead of paper and save the planet. Our cup handles freezer temps down to -40F, and hot temps up to 446F. Squash the cup when you’re done, and put it in your pocket to use again later. Holds 10 oz and stands 5” tall x 3-1/4” dia at the top. Push on its head and watch it sink to just half its size. We’ll send you one in white and aqua, navy, red or lime green to match your eyes.

That'd fill this 9-oz ceramic coffee mug with the periodic table of elements printed on the side to about half a cup. It's printed in color on both sides, actually, in case you're left-handed. The atomic numbers and weights are a trifle small, but then they are atomic.

Know any science geeks who love a good cup of Joe? As usual we've got you covered. This 500ml Erlenmeyer flask coffee mug is made of borosilicate glass and is graduated up to 400ml. Has a handy handle and makes a sweet gift for the overcaffeinated.

The world satellite image on our Night to Daylight mug changes depending on what you pour into it. Fill it with hot coffee, tea or cocoa, and the world wakes up in daylight. As your drink cools, the light goes away and darkness descends. Pretty cool, we must say. Microwave safe, but don’t put it in the dishwasher. When the mug shows the world at night, remember that many of the brightest spots on the globe are not necessarily the most-populated. Holds 11 oz. 

If you’re a surplus groupie, if you think Jarvis sits at the right hand of St. Peter, if you can see our initials without tittering, you should be flaunting your devotion – drinking out of our white, microwave safe/hand-wash only 11 oz coffee mug and wearing our soft T-shirts, all with the likeness of Jarvis (our flying mascot), our corporate name and our inspiring tag line, “Incredible Stuff, Unbelievable Prices.” We have thoughtfully ordered the shirts in gray, the best color to wear when digging for surplus treasure. The T-shirts are 98% cotton, and will shrink. Order accordingly. Don’t just sit there – Jarvisize your wardrobe.

Devoted surpies and the scientifically minded everywhere can be seen sipping their hot beverages from these staggeringly impressive white ceramic mugs with our name, web address, slogan and an inspirational picture of Jarvis on the side. Each holds 11 oz of liquid, dozens of pencils, or (372) button-cell batteries, not included.

This is one of those heat-morphing mugs that start off one way and end up another after you pour your favorite hot beverage into them. We can’t get enough of them, and this (12)-oz’er from Kikkerland® is particularly cool, starting out black with skulls, anchors, ships and sea creatures, and morphing—with the addition of liquid—into a full-color map of Skull Island. Works the same with coffee, tea, cocoa or rum, as long as it’s hot enough. Load up on caffeine to follow the map, and save the rum for the celebration.