Charm/Charms, Clasp, Split Rings, Chain, Wire Cutter, Two Small Pliers
Remove charm(s) from packaging(pic 1)
Cut chain to desired length(pic 2)
Open split ring and attach charm(s) to chain(pic 3 and 4)
Lay out necklace to find center of chain(pic 5)
Cut chain in half making sure it's even on both sides(pic 6)
Open split ring(s) and attach clasp(pic 7)
I found my charms at Michaels, my split rings at Wal-Mart and my clasp and chain online(Etsy and Ebay). But you can find everything you need at either store I mentioned.....including the tools.