A couple ideas off the beaten path I would recomend would be take some small scraps of wood, and wood dowels..and glue different grits of sand paper on them. I really like using the pop out pieces of light ply that come with four star kits..GREAT sanding boards




The other thing I would suggest is put some sand in bags, seal them up, then put them into socks and have your wife sew them up. It works good glueing things together..holding things steady, wheel chocks, and if you make bigger ones they are good to lay wings and fuselages on while working or sanding on them.