Here are some ideas:
Have everyone decorate plain white onesies with Sharpies or Fabric Paint!!! Mom can take them home, wash them and have them ready for baby to wear!! (get them in different sizes so they will be usable the entire first year!!)
Also, I have a page on my website that has some sentimental ideas for baby shower activities. Check that out, too, if you like!!
I put the link below....