Another wooden box. This one took two sheets and you will see that they are not quite the same colour. (I think they will fade to be the same.)

Don't be afraid of stitching on balsa wood - you can cut it with scissors!
Hoop tear away stabiliser and cover with balsa sheets (mine ate 1.5mm thick) to make a piece big enough to cover your box. Use glue stick to fix the sheets to the stabiliser, particularly along the join. Stitch your design. (The engraved style ones from Urban are particularly suitable.) Take out of the hoop and remove as much of the stabiliser as possible. Place the embroidered sheet face down on a smooth hard surface. Cover the top of the box evenly with PVA glue, turn it over and place it in position on the balsa sheet. Weigh this all down with something heavy and forget about it for a few hours.
Place the box, still upside down, on a cutting mat and use a sharp craft knife to cut the excess wood away. Use fine sandpaper to chamfer the edges slightly to finish.