If I can obtain a sewing machine, get a little more experienced with sewing, and find a decent pattern and cute fabric: Hell yes! I'd love to make my own stuff because I'm kind of picky about what I like in lingerie.
I think the biggest sewing project I've ever done was making cloth purses. Not like tote bags, like a decent bag with straps and I put in 2 pockets, one to hold stuff and one for a phone. It closed with a clasp. I made 2 and I used one as my every day bag and people told me that I should try to sell them. So I'm decent with sewing if I can refresh myself, but I'm unsure of how awesome I would be at lingerie... Excellent question, I'm going to go google for some patterns!