We already have snap circuits which I picked up for $2 at a thrift store not knowing what they were. smile
DD8 in particular loves those so I should look at fancier models.
She also really likes Thinkfun type logic puzzles/games.
Anything in particular I should look at for her?

I'm at a loss in terms of my 6 year old. All he wants to do is play Minecraft or Terraria or other video games. I have tried Legos and he likes them for a while, but gets frustrated because of his fine motor issues. A lot of building toys just require too much manual dexterity. But he is very visual-spatial. He does like Rokenbok but it is ridiculously expensive.