We have been doing a lot of sensory play lately as well. One day I put water in the sensory bin and L absolutely loved it. He's really into scooping and pouring now so he worked on that practically the whole time.
He went on his first egg hunt when I switched out the sensory bin for an Easter theme. We put in Easter grass and hid the eggs within the grass. He dug out several of the eggs and played with them.
My favorite sensory play that I think we've ever done has been the Oobleck that we made. It was so neat, it kind of felt like a solid but behaved like a liquid. Of course L had to dump it and stand in it (he loves to do that with liquid or slimy sensory activities haha). We had a great time playing in it and I had little Oobleck footprints all over my house to clean up.
We also spent about an hour one day playing in dyed rice. L spent most of the time scooping and pouring but at the end he decided to dump it all out and walk on it haha. I wasn't able to get any pictures of that but it was a lot of fun. He went and got a small bowl to pour the rice into after he scooped it, I thought that was pretty good thinking on his part. :) Also, one day he played in a bowl of water beads while I cooked dinner, he seemed to really enjoy those again, he hasn't played in them since Christmas.