You can use any wire you have. Large diameter wire will be more difficult to manipulate, but will increase the rigidity of the product. You can combine colors and beads sizes as you like. Bend the ...
Soft copper wire: 22 gauge (wire diameter 0.6mm): 20cm (8 inch) for snowflakes 28 gauge (wire diameter 0.3mm): 15cm (6 inch) 20 gauge (wire diameter 0.8mm): 2 cm (about 0.7 inch) for each beaded chain ...