softshells: (the ones with the smaller holes are for inverted/flat nipples.
http://www.medela.com/NewFiles/breas...tml#softshells
softfeeder (i used one with my son, and i had my mil use it for my daughter when i had to have emergency surgery when she was not even 3 weeks old, so she could get my expressed milk without taking the chance of an artificial nipple interfering with our bf relationship.)
http://www.medela.com/NewFiles/speci...tml#softfeeder
my preferred cup feeder:
http://www.foleycup.com/
medela's cup feeder
http://www.medela.com/NewFiles/speci...g.html#babycup
finger feeder
http://www.medela.com/NewFiles/speci...tml#hazelbaker
water rebirthing: