Nope, you can't purchase one, you gotta make it yourself.
Unless you are one of those who can remember the entire color code for 4- and 5-band marked resistors (test later on how many possible combinations there are; I'm still working on wiring up CAT-5 correctly), you need the help of a reference chart or you can use the handy papercraft Adafruit Resistor Helper. Need a cool thing to wear to work or school? What better time to make or give the gift of a tie? Of course, for the geek and technically inclined, a hacked tie would be even better.
You can make a resistor tie from scratch but you can also repurpose old ties too. Do something with those old power ties to make them current.
I am just going to use a tie I found at the dollar store (really $2, it had a cool sparkly techno vibe in the pattern) and make a few quick mods to implant the papercraft resistor helper.
CAUTION: Know how to use pointy and sharp things like scissors. Know how to sew, press and iron safely.
Step 1: Materials needed
Raid the office supply cabinet for the following:
Thin cardstock or heavy paper to print out the color wheels
Iron-on transfers for light or dark material depending on the choice of tie
Ink-jet printer to print image on iron-on transfer blanks
Brass paper fasteners, the one that look like a tack but the front tangs split open
Clear packaging tape or laminator
Fusible iron-on interfacing or embroidery fabric stabilizer
Simple sewing skills and necessary sewing notions, punch awl and seam ripper optional