I found this idea and tried it when the granddaughter was here for a visit. Insert a laundry basket into the tub and fill it up with water to wash the baby. Put their toys into the basket and put the child into the basket. This is great as a transitional aid to let baby feel safe. It also makes it easier to drain tub and keep toys easily accessible. Use shower spray to rinse out basket and dry.
What a great up-cycle for an old suitcase especially if it were broken at the hinges already. Support the two sides of the suitcase by 2′ doweling approximately 16 inches long (remember the bottom side of suitcase will “eat” up more of the doweling because it has to go down into that end). Put feet on the bottom side with old baseballs, wooden knobs, doweling or some other creative item. I have even seen these with a bed in one and a place to put away toys in the other but if you are going to do this make sure to give your cat the option to see which one he likes the best and after he decides you can always take the bedding out of the one you want to use for toys.