Coolest “item” you’ve seen at a camp?

Hey all! I’m a new camp director who has been asked to come up with a “big ticket item” our fundraising partners can raise funds for at an upcoming event.

In the past we’ve asked for water park inflatables (we’re on a lake), archery equipment, bunk beds, beach wheelchairs, and a storage shed.

I’d like to request a recreation “item” for the kids, aged 7-18, but am struggling to come up with ideas. So here’s my question: what’s the coolest “thing” you’ve seen at a camp?

Thanks for any input!