Don't tend to sell, but love doing it for birthdays, christmas etc.
As for inexpensive materials - most large newsagents have a kids section with glitter glue, embelishments etc. I'm not sure how widespread the chain is, but The Paper Mill Shop is great for bulk buying card and paper ( box of A4 for Ã‚Â£6.99, A5 for Ã‚Â£3.99) and they also do stamps, inkpads - Web site
. Unfortunately you can't buy online, but it does have a store locater, and a list of their range.
Quick question - what kind of scissors does everyone use? Being left handed on top of the HMS issues makes it really tricky for me to find a pair I can use. Just wondering if anyone has a kind they couldn't live without, or ones they wouldn't use if they were paid!