Hi Grammatjr,
I made a nifty 30" x 48", or so, pressing topper to go over my regular ironing board. Used exterior grade 1/2 plywood with wood strips on the bottom to fit up against the sides of the Dollar Store ironing board I had been using.
To get to the point, I used a layer of regular cotton batting to cover the plywood. Then a layer of cheap muslin to cover the batting.
I topped it off with regular cotton fabric from the sewing shop. Yes, I decided it had to be FUN too! So, yep, I picked the gaudiest, loudest, bright yellow, pink, and fuschia flower print from the 1/2 off bin.
That regular cotton fabric has not turned, burned, or scorched in almost five years of pressing and applique.
I put the muslin directly over the batting first so I could change the top fabric as years go by without messing with the batting again.
Don't have a picture, it would be a hoot if you did get to see it.
Sound do-able?