Whitecloudhuter,,

A crest is on the end of the arrow under the fletching, they have ones that u can buy that are self-adhesive, but as Ausie said some actully use spray paint to add a crest of the end of their arrows,, which i have done and is faily easy to do

i would start off by doing a search on here, but basicallly all u need to do is,,

Go to wal-mart or a hardware store and purchase a can of Rust-o-leum specialty lacquer and maybe some masking tape if u aint got none

first go and prep the arrow shaft as you would if u were about to fletch it, then

take the masking tape and place it around the arrow shaft were u want the crest to end, and also down the shaft a little to prevent any of thepaint thatwill spray over geting on the shaft if u have removealbe nock pull them out or you can tape over them.

Then spray lightly the arrow shaft till it is white, (or what ever colour uhavechoosen) then let it dry, I do my in 4 or 5 very light coat till it is white, then let it set, usallyi let it set til it is dry to the touch, then i go and glue the fletchings on. that is how i do it i hope i did leave anything out of it.

i would give this a try first before spending the 130 bucks on the cresting kit,,if u dont like how they turned out then you can drop the green on the kit.just my .10