insert an easy out part into the rivet hole, heat the easy out up with a propane torch for about 20-30 seconds and slowly pull the rivet out. Heating up the tool transfers heat to the plastic on the ski, it'll soften up pretty quick. It helps to use vise grips, and be sure to get a good bite with the easy out. You'll be able to re-use the rivets, just warm them up a tic and use a c clamp to sink em back in