Here's a great source for cushion foam, polyester pillow forms, down cushions and custom made outdoor cushions in Sunbrella etc.
A step by step tutorial for a DIY padded headboard created using plywood, upholstery foam, and fabric.
use two queen mattress pads (A.K.A. egg crates) with the curved sides facing each other as foam.
Shop 4 x 24 x 108 High Density Upholstery Foam at onlinefabricstore.net for $130.7.
Shop 6 x 24 x 108 High Density Upholstery Foam at onlinefabricstore.net for $196.05.
2 x 18 x 108 High Density Upholstery Foam - $47.65 | onlinefabricstore.net
DIY - Amazing!!! How to replace worn out foam in your couch cushions - by Upholstery Studio via youtube.com
Upholstery foam cushions sheets. High density foam seat pads select any sizeGREY
Sold by Phillips Auction. FRANZ WEST. Untitled. (Bench). 1993. Steel bench covered with foam upholstery, foam pillows and white linen sheet.
2" Twin Size Medium Density Mattress Foam - $43.45 | onlinefabricstore.net-for the homemade ottoman