How did you do it?
basically just put the entire thing into some Sodium Hydroxide and leave it until the anodising comes out. may take a wee while. and the end result WILL be bad. it will oxidize and look awful so be prepared to sand down and polish. you can find Sodium Hydroxide in drain cleaners. almost all of them will have. just get some hot water, just enough to cover the pieces of aluminium and add some drain cleaner. and just wait a few hours. some say the aluminium will bubble and all. but mine didnt. it just came of slowly. il post some pic up in a few minutes
I've successfully done it to a guidesman, using greased lightening, but when I tried with a blue hotlight, i didn't work. Not all the blue came off and it turned a weird brown.