Customised mens underwear wanted

I would like to customise some mens underwear, is it possible for you to:
1) Add my own writing around the elastic of the underwear? - just a simple word, a line name
2) Get a small image printed on the rear of the underwear - inside and outside?

If yes - please state your requirements (image format, templates etc.) and I will send further information.

Thank you,
Jeremy Jacob