A few people asked for pictures of how my husband modified a cheap sewing cabinet I bought so that my sewing machine would sit down inside of it like the expensive cabinets.
You could also cut a hole in a table or counter top and use hanging brackets for the shelf. I have the little brass pop in shelf brackets on mine but little blocks of wood could be screwed in to hold up the mdf board shelf.
Open cabinet showing hole & shelf
Entire front of open cabinet
Close up of little shelf holders