How to make synthetic dreads

Hey I'm thinking about making my own but yea they will be different shades of pink and some black. Oh and I might wanna make some with an ice blue added just for some fun!!! ^_^ Well as an FYI this was found on youtube so people in IL Don't listen to the store just buy them anywhere you can just not online like she said b/c they cost way way more.
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Pinkie out