Does anyone know where I can buy a universal bath plug? I haven't had any luck yet.

For some reason google gives about 95% UK websites, but here are a few in the US -

http://www.walkabouttravelgear.com/care.htm#cloth

http://www.sailgb.com/p/universal_sink_plug/

http://www.outdoorgb.com/p/travel_bath_sink_plug/

There are also some more economical options, such as a cut-in-half, inside-out tennis ball or one of those jar-gripper thingies. Pretty much anything that's large enough, flat, and smooth rubber should work.

Any decently stocked DIY store ought to have one (Home Depot, for instance).

dont buy it we have good and believe me it is not universal we used it 10 times in 5 months and it work only 2 times save the money

It's more like a slow-the-water-from-going-down-the-drain plug. But better than nothing. Have seen them in the plumbing depts of local hardware stores.

Hey cjun this ol former Lake Charles boy just bought one at REI and they have them at Wal-Mart. It's just a flat piece of round rubber but they work somewhat and they have come in handy for me more than once but I bought my last one ten years ago and it finally cracked.

Thanks for your help. I did find one at Wal-Mart.