The best replacement for sticker is decal.

The best alternatives to sticker are rated as following:
★★★★★  decal
★★★  green sticker
★★  red sticker
★★  msrp
★★  invoice price
★  blue handicap sticker
★  transponder
  potsticker
  green cac sticker
  label
  magnet

Your alternative for sticker is not listed? Suggest!
Speaking about sticker, one probably shouldn't forget about blue stripe.

Other search terms related to sticker and their ratings are:
★★★★★ blue stripe
★★★★ yellow equal sign
★★ black and blue stripes
★★ tree and moon
★ equal sign
★ ring finger down
You have in mind a companion for sticker and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of sticker in all years. Click on graph for more.
sticker
decal
green sticker