I can see making one table and then having a number of bins - cloud sand, colored rice, beans, water, etc. Just keep 'em stacked in the garage and switch out as desired. Cute idea for a water table too.
The Basics: How to Color Rice (and pasta). Perfect for sensory play and art projects! ---> O'Courter: I used this recipe to color rice for sensory play. It was simple and the rice turned out very vibrantly colored.
10+ Easy Sensory Bins/Tables for Babies, Toddlers, and Preschoolers
cook pasta & refrigerate for cold worms & dry out coffee grounds by baking + storing in open container "Dirt" and "Worms" all ages sensory bin. Edible and great fine motor practice for the little ones.