I have used sugar once before so i have a basic knowledge. Would i be able to make my own mould of a glass tumbler? and if so what would i make it out of? Another problem i have is making the "glass" clear. I have read alot about iso melt? (sorry i got that wrong) which stays clear when melted but in the UK i can't find it. Is there something else that would give me the same clarity in poured sugar? Thank you in advance for your help x