WOW... what an Excellent Idea... that's obviously an old plastic ( or shall we say Vinyl) table cloth... maybe run to Walmart and buy up table cloths -- obviously with the eye for of various motifs... you know... for spring, summer and fall... that was obviously the summer seat!... and sell them on EBAY for specialty custom motorcycle seat cover material.. Each one makes 4 seats!
You could even have the sportsman's model... with a woodsland scene, hunting fishing, the possibilities are endless!
Put your wife in a nice pink to match her helmet and gloves... ( or is that only scuba gear that comes in ridiculous pink)
Let me know how it works...