LED illuminated ice cup

thingiverse

This tiny LED-illuminated cup not only brightens up your drink but also keeps it chilled during those balmy summer evenings. Fill the outer cup with water, as shown in the image, and put it on ice. Inside the base, a single bright 5mm LED and compact batteries are cleverly installed. Use white or transparent filament for the top section. Chances are some support material will be generated on the bottom between the cups that you can't easily remove but that's perfectly fine.