A friend of ours had an inflatable bath tub for their little one in the shape of a duck. I kept it in the back of our mind prior to having kids. So when the time came to purchase an inflatable tub, we purchased the duck as well. It was great for traveling with the kids before we were ready to shower them and before they could sit in the bath. Our duck has now gone through my two children and my nephew. It has been awesome.
If you have girls, you might be interested in the Disney Princess inflatable bath tub. It’s on sale for $12.50.
Disney Inflatable Bathtub, Princess
or you could always go with the adorable duck:
Munchkin White Hot Inflatable Duck Tub
Once they grow out of the duck, I would suggest moving into just using a laundry basket.