Thanks Robin H. for the suggestion of BLOCKS for What's the Sign Wednesday.
BLOCKS is a great one because you can talk about colors. (Here's some colors we've done thus far:)
(more coming soon with our Brown Bear Brown Bear rendition!)
BLOCKS are great because you can talk about ON top, fall down, and build UP. My little fingers is just starting to play with BLOCKS, knock them down and build them UP - so cute.