Jumpers are a waste of money at this age. The ball pit is a good idea but 1 year olds tend to put lots of things in their mouths, as you probably already know, and you may want to reconsider renting one for that very reason. I had a hard time finding other ideas as well. So I got a bunch of different sized balloon, from water balloon size all the way up, and blew them up with a foot pump. I basically cleared a room out in the middle, took all breakable things out of the higher shelves, threw the different balloons all over the floor and let them have at it. Add some helium inflated balloons with long enough strings to be within grabbing distance of them. They loved the balloons all over the place and they really liked grabbing the strings and pulling on them and seeing the balloon come closer to them. You just have to make sure that if a balloon pops, that you have an adult there at all times to immediately remove the debris. Although it takes a bit of adult help and supervision, honestly - what at this age doesn't? They will have a blast and it is much less expensive then renting something that may or may not be sanitized properly. Have Fun!!!!