You can use a bag to carry the load, so that rice or sand can be balanced by your sides, or you can sit alone.

However, it is really unnecessary to practice push-ups at home. Might as well go out and practice equipment. The practice of overcoming body gravity is to practice explosive force. Don't blindly gain weight. When you can do a lot, you can practice clapping, one-handed or handstand push-ups. When pushing, you can use more explosive force to speed up.