I used the following stamps
You can now use any stamps for the Challenges, but only one entry per person for each challenge. Two lucky people will be drawn from all the challenges for September, who will win a $30 voucher to spend on Stampotique rubber. So make sure you go over to the Stampotique Designers Challenge Blog to enter.
Stampotique Rubber Stamps are available to buy from Stampotique originals, and in the UK you can buy them from A sprinkle of imaginataion.