I too had a very nasty cut with a rotary cutter and still have nerve damage two years later. I bought these ones from Lee Valley tools and also bought some for a couple of friends who quilt. I was quite shaken to try cutting again but after running my rotary cutter over these a number of times in all directions, I am back to cutting comfortably. These ones have grippy dots and fit very well.
(US link)
http://www.leevalley.com/en/wood/pag...=1,42207,45887
(Canadian link)
http://www.leevalley.com/en/wood/page.aspx?p=72972&cat=1,42207,45887