Anonymous wrote:Playdough and/or clay; noodles that stick together when you dampen them (for building things); agree with Duck tape in several fun colors and kids can create forts with that + old boxes. Marble mazes (though that can get pricey).
For slightly older kids, google Rube Goldberg. My kid spent an entire day building one with stuff around the house and then recording his results with an iPad.
This is a good thread, OP. I will try to think of more things.
Anonymous wrote:Remember that if you order stuff online, that means a whole bunch of people have to physically go to work?