Cute bags! I sell bags on Etsy and although my bags are my own patterns, they ARE similar to store bought patterns or even bags that other people make. To be honest, most people won't be able to tell your own pattern from anyone elses or even store bought. I wouldn't worry too much.
Very cute & fun ideas! I have been doing little "portraits" on my nails since I can't even remember when, and I have to do new ones every week! I tend to get decals at the dollar stores, which are fun to use, or I use nail polish or Sharpies when I have more time to be creative on my own Nails are fun to play around with, and everybody always comments, so they're a good conversation starter!