T-Shirt Hem Ideas

I've been noticing a lot of t-shirt edges left unfinished. Here are several examples. The yellow shirt has a double neck band with the edges left raw to curl.

My son's shirt has 2 sleeves, both left unhemmed. The bottom hem is traditional and then has a second strip of red added under it.

This gray shirt was hemmed and then the hem was cut along the fold line. The knit used is unique because it reverses to blue, but it is a single jersey knit.

This dress has several tiers, none of them hemmed. How easy is that?!