My DW and I are looking to buy one of the strollers like they have at Disney and other theme parks. Our DD's are 7 and 3. Our current double stroller is difficult to push with both of them in there. I would be satisfied if we could find a single since the DD7 is getting a little big for a stroller. It's still nice to have room for her at theme parks though. Any advice where I can find one? I've looked on eBay, but didn't see anything although I honestly didn't look through the 2,000+ strollers listed.