Jonathan is in this phase currently. He loves to push his wagon and his truck around (they are large and the walk-behind-kind). They both have place for storage. He loves to put things in his bucket to push around. I find it curious to see what he likes to put in there.
I case you can't tell by this crappy camera action... it is a rechargeable flashlight and a pack of sparkly star stickers. He has turned the flashlight on.