Block trolley

Mum gave Oscar a block trolley for his first birthday. He has been walking on his knees on it and loving it. But just two nights ago he figured out that he could actually stand up and push it along... just like walking. He is mad for it. The wheels don't have much resistance so he is chasing it around pretty quickly. I suppose that is why he had to put his drink in the trolley, so that he can rehydrate whenever he needs to. Smart thinking!