politely as possible, tell your closer family/friends "if you wish to purchase dolls for the christmas tree angels in my daughter's name, we'd really appreciate it. "baby's name" already has a lot of baby dolls." donate a few to the toys for tots- they'll be out in jsut a few months from now.
If you'd like to give her a gift, offer something else- a bike to scoot on next spring, or a sled for winter (hoping we get snow), bath tub toys...
Don't feel bad. I practically shoveled out the gifts from my first Christmas and second - son was born on Election day- so birthday and Christmas kind of run together. and had a second child was born 1 and a half weeks after New Year's day.