Thanks les thats a good idea, I dont hold out much hope. Looking into it I discover these things cost alot, part of the reason is every boiler has to be tested apparently and carry a certificate, no idea if this is a UK/euro thing or world wide. I assumed that a 'toy' would be exempt, but apparently not! Looking back at past sales on ebay, not many working ones go cheap.
SOOoooo I have a fall back position, not as elegant but it should represent the idea. I will take the old 2 stroke hedge trimmer (dosnt work), and convert to run on 'steam' (actually it will be compressed air but hey ho). Seems easy enough to do, bit of a shame as I like real steam but its an easy solution. This year the work has swamped me, so I have had to massively scale down what I make in school projects. Besides the marks stop at A*, looking at other projects that got A* makes me wonder why I put the effort in last year.
Not being funny about it, but the fact is I could have done 80% less work and effort and still got top grades.
Maybe I am getting cynical!
. I will save the clever stuff for home, I ended up not doing many home projects after my exams last year, so this year I wont be making that mistake again.