Jamie,
Hey here is a site that has alot of do it you self carriers i'm working on makeing a Mei Tai for Brayden but i'm not good a sewing so it may be a while

I've made just a tie on wrap for Nathan when he was a baby and i just went to the Fabric store and for a few yards or a light fabric and on sale 2 bucka yard and tied him on he loved it

I bought the Infantion sling this time and i hate it it's too long and bulky and just unomfy all around
http://www.sleepingbaby.net/jan/Baby/index.html i hope you can get some ideal here
Amber