any ideas where i could get scrap bike parts from
Hi - and if this is your first item made from bits 'o bike, welcome.
Re the question
Visit all local bike shops, ask if they do repairs - and if a positive answer (very likely)- enquire what they do with the scrap / bits they take off.
They'll ask why - if you've got something you've already made, good - show it to them and tell them what you're about / trying to do/make.
Since bike shops generally have to get rid of their scrap - they, in my experience, welcome anyone that'll help in that - especially if no £ involved.
If you're after *really* scrap items - ie those that visibly / obviously show signs of battle - tell them they'd be great - they'll invariably have a chortle, shake their heads in bewilderment, wonder what sort of nutter has just walked through their door - then return with some wonderfully mangled bit of junk that has immense creative potential.
I've no idea whether this is your first (of many) or only - item - but don't refuse anything offered if the former scenario - you never know when it'll come in handy.
Do everything possible to differentiate yourself from being yet another collector of scrap metal to weigh in at the scrappers for £.
Ask friends / family / neighbours - chances are they'll have some old wreck languishing in a shed / basement etc.
If you have scrap bods with vans / trucks etc visiting your area on a regular basis, ask them about what they have on their truck - £ inevitably involved, but they'll generally only get 'light iron' prices for any complete bikes because of the material mix - they're unlikely to separate parts.
Ring your local scrappers to get a current price /kg for such items - so you'll have a better idea whether the scrap bod is trying to stiff you.
If they're decent bods, and you want to continue with this, try to build a relationship - and, even better, give them some scrap.
Keep your eyes open - especially on bin empty days - householders still put things like bikes out for collection, even though the council won't collect. Check with owner if possible and snaffle before they change their mind - they're generally just glad to get rid of the darned thing.
Keep your eyes open #2 - abandoned in bushes / ditches etc.
Some means of carrying is obviously useful - trailer is great, of course.
Best of luck, and maybe a pic when you've done?
Many such items on the net, of course for future inspiration, rather than copying.