After any drilling, and trimming of ragged edges, gently sand your belly cast to smooth out all that plaster. Be sure to use a fine, light sandpaper and work carefully. Then, let the creativity begin!
2-3 coast of gesso will add shine and create a good base for painting. Or, if not paint, consider other media like tile mosaics, clay, bronzer, or decopaging photos onto the cast.
All these ideas and more can be found here. Do an internet search for belly cast and find some other images that inspire you!Don’t let that beautiful belly cast gather dust in the closet! Use this opportunity to make a beautiful & personal heirloom work of art!