I think it's tacky. You are asking your friends and family for gifts. Actually, I don't even like it when family gives showers, unless it's a family shower. What you are saying is " We want you to buy a gift for our sister/mother/brother..." you get the picture. I'll put this right up there with invitations that say "Cash gifts only".
I decided to google this:
This is from allaboutshowers.com
Can a family member throw a bridal shower?
A: No, that would seem self-serving. A friend or distant relative may throw a bridal shower. Normally, the bridesmaids throw one shower, but it is not mandatory.
No question about throwing one for yourself being self-serving.
Claudia
2009 Trek 7.6fx
2013 Jamis Satellite
2014 Terry Burlington