The baby crafts page at Sleeping Baby Productions includes a selective collection of tested instructions for making a variety of baby carriers.

The "make a carrier" pages at The Mamatoto Project include instructions for no-sew baby carriers as well as sewing projects. The Mamatoto instructions for making a no-sew wrap have enabled many people to begin babywearing immediately.

The blog of the Magic City Slingers includes instructions for a no-sew fleece poncho to use while babywearing; it works for front carries or back carries.

The Christmas Eve Twins blog has a tutorial for sewing a luxurious, "Scandinavian-style" mei tai.

Mag-knits has instructions for a simple knitted cool-weather cover called "Seaweed" that works with your own coat.

Gypsy Mama has instructions for a super-simple no-sew fleece babywearing poncho.

A Portee de bisous has a large collection of links for DIY babywearing items, carriers, clothes etc:DIY category