The best replacement for cork is bamboo flooring.

The best alternatives to cork are rated as following:
★★★★★  bamboo flooring
★★★  screw cap
★★  kerry
★★  bamboo
★★  dublin
★  screw top
★  screw top wine
★  galway
★  rubber gaskets
★  foam roadbed
★  kilkenny
★  hardwood flooring
★  clare
★  rubber valve cover gaskets
  kinsale
  killarney
  belfast
  rubber stopper
  limerick
  kildare
  stopper
  tyrone
  cap
  foam yoga block
  rodeo
  donegal
  not to cork
  rubber gasket
  laois
  waterford
  engineered hardwood
  bamboo floor
  galway hurling
  kerry tickets
  wood floor
  screw cap wine
  clare hurling
  waterford hurling
  kilkenny hurling
  tipp

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

Other search terms related to cork and their ratings are:
★★★★★ octopus
★ tube
★ opener
★ corker
★ wine opener
You have in mind a companion for cork and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of cork in all years. Click on graph for more.
cork
bamboo flooring
screw cap