Water Drinking Abacus

If you are like me and forget to drink your X amount of water every day, here's a little tool for you. This abacus helps you keep track of how many cups of water you are drinking every day. There are 3 variants of the counting "cups", a smooth one, a grooved one and a numbered one. The pegs are printed separately from the base so that they can be printed horizontally and thus take advantage of greater structural strength afforded by printing them that way.