I found a fun, cheap, and easy project in Family Fun magazine about making Lava Lamps with things you already have in your house. You will need 3 empty water bottles ( I don't normally buy this kind of water,.
I love the idea of a sensory wall using embroidery hoops! Over 50 ways to entertain your baby! Creative ideas for first art projects and TONS of ideas for edible (taste-safe) sensory play from Fun at Home with Kids.