updated by @chelsea-lookwhatthecatdraggedin: 12/04/17 10:36:59PM
Why don't you make 'synthetic dreads' either with kankelan or wool roving (which is what I use) and tie them into your locks? It'll give you the appearance of longer/shorter/different colored/etc locs and you can take them out and put them in when ever you like.
Mine started unraveling after the first wash, backcombing them sucked and using the straightener on them hurt my hands lol. I would definitely suggest buying wool roving instead. They're a little more expensive but they feel nicer and theyre super soft and are a lot easier to make too. heres the tutorial i used when i made mine: http:/http://www.youtube.com/watch?v=l90q_35VYUo
hope this helps a bit