Ive just telephoned around sheffield and ordered some gas for my cabinet heater from MF Hire on East Bank Road. I found that they were the cheapest of all from the places i phoned and they are also delivering it free of charge to my home in Hillsborough.
What about Go Ape, a few people i know have been there & they say its great for parties etc, it has high wires, zip lines, tarzan swings etc! There is one in Nottingham!
Why not have a prom style party where they all get in to posh dresses/ suits and have a few nibbles, n some no alcoholic cocktails, have a few streamers n banners etc... Make them feel really grown up!