Could also be used in a spelling center.Lego-out the words. Lego learning games - exploring Lego and play dough. This is a great activity for sensory play, imaginative play, letter recognition and sight words.
Wrap some baker's twine or other string around a wooden block to create a graphic textured stamp. -can also use rubber bands- Stamp on inside of paper bags from grocery store or paper that comes in mailed packages, use as wrapping paper.
diy baby blocks--as long as they can be contained in the Ziploc. Variation: These can even be made into texture blocks (different textures for each block, or on the different sides of the blocks. That would make it a great sensory toy!