Plastic beads (see description below)
A bead loom (sold with the beads generally or you can make your own)
A regular clothes iron (set to the hottest setting)
A flat surface to iron on
Some ironing paper to make sure the beads do not stick to your iron or flat surface.
This craft project uses a particular type of plastic bead that melts and binds to the beads around it when heated with an iron.
The beads stick together to make fun and colorful pieces of art. You can even buy glow in the dark beads to add an extra bit of fun to this bead craft.
There are various brand names that sell the beads, and you can buy them at most stores that sell crafts.
You can make 3D sculptures by stacking each finished layer one on top of the other similar to how a 3D printer works but much slower. This is of course offset by the extremely low cost.