We found these blue box lids to do blue/green screening, but that function doesn't seem to work with a remote camera (as we use).  It didn't deter Wilson, as that just made it be water.

Wilson says "Bricky" gets a house in a box and builds it.

Wilson named these "Hero" and "Villain" as he has been drawing robots from a book.

Here's a great image that I found making sure I spelled 'villain' correctly: