Stick them in a freezer if you have one, the wax will freeze making it really easy to scrape off with a knife or something.. Then give them a hot wash.. jeans can take a 60 degree wash without shrinkage.
katkit, April 2009
dry cleaning is the best way to remove wax or oil stains
kelly, April 2009
Scrape off any lumps and iron with absorbent paper as a blotter to soak up the melted wax.
Use a couple layers of paper - toilet tissue - kitchen wipes - newspaper - and put some on the inside to prevent any wax soaking through.