Check the listing for details. Gaetan Bloom's Potty Bicycle Pumps Magic Trick. Listed at 23.99 USD. Gaetan Bloom's Potty Bicycle Pumps Magic Trick Complete instructions to construct this comedy routine with bicycle pumps. Make sure you click on our store icon. Thousands of rare and vintage items up for auction in our eBay Store. Make an offer available on all items. Many out of production and no longer available. Check it out! PLEASE NOTE: WE SELL VINTAGE COLLECTIONS FROM AROUND THE WORLD. WE ARE NOT DEALERS OF NEW ITEMS. IF YOU WANT OUT OF PRODUCTION, OUT OF STOCK, DISCOUNTED ITEMS, RARE, SCARCE, WE ARE FOR YOU. OUR DESCRIPTIONS ARE THE BEST WE KNOW. IF IT'S NOT PHOTOGRAPHED IT'S NOT INCLUDED. Make an offer available on all items. Many out of production and no longer available. Check it out! Please note: When we accept offers it is accepted with stated shipping charges per item. If you use a buy it now we can combine shipping charges.