:) I am no where near brave enough to administer my own shots...even on my 17hh 1600lb gelding who stands like a rock for everything and everyone.
I think I will try the toothpick approach, starting with myself and then asking other people to help. I really do think the key thing is getting her used to being 'poked' in the neck by someone other than me. I just need to give some thought as to how to ensure those others safety. So far Dai would rather run than strike out but she's a horse so you never know 100% for sure.
Thanks again everyone for all your thoughtful advice.