Now this is a handsome and useful redeployment of a gourd: a house for the little people!
I use inexpensive acrylic craft paint because it had great colors and covers very well. Also you can just squirt it right inside the gourd and spread it around.
Decorate your gourd with "curtains". I have used eyelet, fringe and pompoms for my curtains. All are cute. Hang with hot glue or other adhesive.
My rug is a felted sweater scrap, trimmed with scallop shears, and also glued in place. The fluffy rug helps mitigate the uneven floor of the gourd.