The best replacement for placemats is chargers.

The best alternatives to placemats are rated as following:
★★★★★  chargers
★★★★  tablecloth
★★★  place mats
★★  tablecloths
★  table cloth
★  table linens

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

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



Google Trends

Scale is based on the average worldwide traffic of placemats in all years. Click on graph for more.
placemats
chargers
tablecloth