Dumbbells & Weights
Try water bottles, food cans, wine bottles for smaller weights.
Yoga Blocks
Stack of books (large, encyclopedia size),
low chair or table, rolled towel or pillow can support hips.
Pilates/Barre/Yoga Ball
Rolled towel bound with rubber bands or a pillow.
Resistance Bands
Long towel, robe ties or bicycle tubes.
Barre
Folded chair, counter or table top.