It might not be quite his first, but I’ll claim it is. He’s been able to build the men since forever, and stick blocks together. But I think this is the first time he decided he wanted to build a specific thing, found the pieces and put them together in some coherent shape. All with zero help (I had gotten bored with lego and was browsing the web at the time!)
Can you tell what it is?!
It’s a pair of dragon wings. (Made of 2 wing pieces held together by the red strip)
Later, Mummy helped him add a head. Oscar found a tail, and I tried adding legs, but Oscar didn’t approve of them so they didn’t last long.