My little guy is exactly the same! Loves taking things apart and putting them back together - but oy what a mess that can make! (I saw someone mentioned an incident with a Roomba.. agh!) Our new favorite toy (yes, OUR favorite, because it keeps his attention without creating a mess wink ) is this thing called a Vertical Vortex, which is basically like a flow toy that's perpetually in motion.. it basically disassembles and reassembles itself so long as he keeps it moving! Good way to teach kinetics to a young'un, while also being a little artsy as well lol