If you want a realistic, amazing-quality scarf and do not mind paying some money for it, this is what I recommend:
Go to etsy (or another site where independent craftspeople sell their work). Search “knitting commissions.” Browse through a few shops to determine which knitter (or crochet-er, if you want to go that route) you deem the most skilled or whose handiwork appeals to you. Ask that person politely if they would be willing to create a scarf for you. If so, you can begin to outline things like the dimensions, colors, and such of the scarf. A drawn reference helps.
I would say that people who want to cosplay Roxy and Eridan would benefit most from this tactic, considering that those two characters have scarves that are nearly impossible to find at a normal retailer if you want canon accuracy.
The upsides: you get an AMAZING scarf (if you commission a highly-skilled craftsperson). A good scarf is a finishing touch on a cosplay; you can pass with an okay-quality one, but a REALLY good accessory can really make your costume look so much better.
The downsides: This is not something you want to do on a budget. You have to have a good amount of disposable income. I paid a bit less than $50 for my scarf (although it’s worth every penny). In addition, you must be patient enough to respectfully wait for the craftsperson to actually create the project— knitting takes time, you know.
submitted by anon