So today while I was at Walmart I finally caved and bought a Ninjago spinner thing. I read the rules and sure it looks like it would be fun to play. I think even my 4 year old could get the concept, so it might be a fun thing to play with him whenever his big sister is away doing something.
Now, the reason I got a Skeleton in particular is that I have been playing Terraria pretty much non-stop since Thursday when I bought it, and Skeletons are a pretty iconic enemy (slightly less so than the ever present slimes, but I don't know that LEGO has ever released a slime minifig). I went in to this looking for Chopov, because I think it is funny he wears a helmet, but when I saw Bonezai I just had to get him. I'll get to the why in a moment.
The LEGO/Terraria connection in my head is pretty overpowering apparently.