i used Aylee as well - got like 6 designs. i didn't use them on my invites, but i made my own. i did use them on my OOT bags, and also on a news/welcome letter. i can't remember where else.
to get them on the OOT bags, i bought transfer paper (iron on paper), printed directly on the paper, then ironed it on the bag! for the newsletter - i just litteraly copied the image into Microsoft Word, and printed.