CLEARANCE 50% OFF! Advent Calendar Clear Rubber Stamps £11.00 Quantity: at £11.00 each Add To Basket 0 in your basket View Basket Checkout Normally £22, £11 until stock lasts. We have a limited quantity of 24 clear photopolymer stamps spread over 2 x A6 sets with advent calendar numbers. Average stamp size is 3.2cm sq. You will need clear acrylic blocks to mount these stamps on, or temporarily cling onto a cd case, stamping playform, clear ink pad lid etc.