Several years ago, due to financial dire straits and youthful curiosity, my better half and I decided to live one month completely upon the offerings of the 99 Cents Only Store. The penny pinching operation was a very interesting and revealing experience, as we didn't really buy all that much when limited to one store, but we did find creative solutions to everyday needs while abiding by the restriction...
Instructor Michael Salter had his students follow similar restrictions, limiting their material options to discount dollar store products. The first two images are of our favourite designs (both designed by Thyra Bessette), a chandelier created from plastic service ware and placemats made with plastic rulers. Immediately above is a sconce made with plastic gift boxes and cup holders with LED lighting.
Another LED lighting solution fashioned out of rubber balls, with an amusing storage solution created with ice cream scoops, both designed by Peter Baston.
Many more designs to mull over and be inspired by at Dollarstore-hack.