I'm putting a bit of foam under my exisiting seat and the stapler I have will not cut it. I'm trying to go into the seat (plastic) and it barely goes into the plastic. Something like these. http://www.mcmaster.com/#manual-staple-guns/=nhp9fc Is there an option for a hand stapler that can ka pow into the plastic better without costing hundreds of dollars?? Should I use staples with the pointed ends? I'm just a weekend warrior when it comes to upholsery.