1988 23cc cushions and non-skid

[Normagain]

I'm not sure what your cushions look like but on my 20' console, the seat cushions look a lot like the Igloo cushions you can buy for their coolers. If one is the right size, some velcro tape and one of those might get you something, at least for the seat bottom.
http://www.igloocoolers.com/Seat-Cushions