We have one of those smaller plastic kiddie pools, which worked well for two ducks. Now that i have a dozen (one big girl and eleven growing kids) i was wanting to upgrade to the larger size. i went to Lowes and bought all the connectors that Katharina recommended to put a drain in, then went to ToysRUs expecting to pick up that larger pool. They're out! i've called everywhere - Walmart, Kmart, Sears, Big Lots, and seems they are a seasonal item and no one has them in stock. i've searched craigslist, then posted asking for one - nothing. So now i have a little kiddie pool with 12 ducks fighting over who gets to swim. Any suggestions for a larger pool until next Spring? i've looked at pond forms but they are expensive (!).