This off site rental option is quite popular and they also rent out other useful things like car seats and bath tubs for your baby. (mommystroller.com)
And you can trade the miles in later for magazines and other useful things if you aren't going to use them on flights. (gonomad.com)
A piece of baby furniture that's designed to last longer by changing into other useful things as one's child grows. (treehugger.com)