The best replacement for bubbles is baby moving.

The best alternatives to bubbles are rated as following:
★★★★★  baby moving
★★★★  fetal movement
★★★  foamy urine
★★★  kaboom
★★★  blossom
★★  boomer
★★  brat
★  flutters
★  birdseed
★  buttercup
★  baby kicking
★  suds
★  blossom and buttercup
★  blossom buttercup
  ich

Your alternative for bubbles is not listed? Suggest!
Speaking about bubbles, one probably shouldn't forget about corn syrup.

Other search terms related to bubbles and their ratings are:
★★★★★ corn syrup
★★★★ labels
★★★★ bubble bath
★★★★ rush
★★★ dry ice
★★★ glow sticks
★★ dish soap
★★ troubles
★★ wands
karo syrup
You have in mind a companion for bubbles and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of bubbles in all years. Click on graph for more.
bubbles
baby moving
fetal movement