There is a new blog starting next month and they are having a DT call at the moment. The challenge is slightly different to others around as "If you like most of us have a stash of old stamp gathering dust, then this is the place to come. There will be a new challenge every other Tuesday and you can combine it with as many other challenges as you like, as long as the main image is stamped and at least 6 months old. You can make anything you like Card, ATC, L/O etc as long as it fits in with the challenge"
Check it out :)