The best replacement for trampoline is bounce house.

The best alternatives to trampoline are rated as following:
★★★★★  bounce house
★★★★  rebounder
★★★  swing set
★★  jump rope
★★  bouncy castle
★★  playset
★  climbing frame
★  band trampoline
★  spring trampoline
★  bouncer
★  traditional trampoline
  skywalker trampoline
  swimming pool
  water bouncer
  jumping castle
  mini trampoline
  skywalker
  playhouse
  fat chick
  moonbounce
  air zone trampoline
  running on trampoline
  springfree
  no trampoline
  spring

Your alternative for trampoline is not listed? Suggest!
Speaking about trampoline, one probably shouldn't forget about basketball.

Other search terms related to trampoline and their ratings are:
★★★★★ basketball
You have in mind a companion for trampoline and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of trampoline in all years. Click on graph for more.
trampoline
bounce house
rebounder