Tally, I think if you build them a cool fort they can play in, they will love it. Or some of those Little Tykes playhouses or jungle gyms, the smaller ones, are cool.
They love big, unusual toys too. I once screwed two big eyebolts right into the beams behind the drywall in the ceiling of our family room. Then I mounted a big red plastic Little Tykes rocket ship swing, and my kids thought it was the coolest thing ever to have a real swing inside our house. They played with that all the time.
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Men: we might be loud and smelly, but we can move heavy stuff.