So I did this whole thing before I thought to ask, do you have a veil or no? If not, heeere's some google images!

Totally failed at styling my pixie when I had one, but if I were at that length, I'd be all over some fancy wedding hats. You could go big or small, medium I guess? Personally I'm a huge fan of netting so there's a lot of that. So - many - headbands. In fact with some patience and hot glue, you could make anything into a headband or clipped piece. I noticed when I started googling pixie specific things, that a lot of pixie girls have smaller pieces going on, but I think that's up to you. Really the only thing I think you'd have trouble with would be a tiara, since your hair is super short and I don't know if you'd be able to secure it.

Hope this helps! Search terms used were "wedding/bridal hats/headbands" "bridal pixie", etc.