I will be using Rosary Loops in this construction, so please watch the Rosary Loops Video for a "how to".
Cut two pieces of the curb chain in 3 link lengths.
Using two pairs of pliers open a jump ring and add a key charm to each end of the chain pieces cut in Step 1.
Add the free end of each chain piece to an earwire.
Working one earring at a time, choose 6 bicones from the mix, picking at random or one of each color.
Prepare the crystals by slipping each one onto a head pin, trimming the wire with the nipper tool, to just over 3/8” from the top of the bead and make a rosary loop with the Wire Looping Tool or Round Nose Pliers.
Working from the bottom up the chain, place two bicones per link, one unit on each side of the link for a total of 6 bicones.