What are your thoughts on donating blood at a …

What are your thoughts on donating blood at a blood bank as an offering?

That sounds like a pretty perfect way to do it, anon. Especially for anyone that’s uncomfortable or unfamiliar with safety practices for drawing and handling blood. The one thing that could potentially alter the nature of the offering from my perspective is that the blood itself might not be considered a direct material offering to the god because it’s being kept to be used for transfusions, but rather the act would be, and even so I don’t think that it would really matter, either way I’m sure it would be an effective offering.
Essentially I would consider it as a different form of blood-offering but no less meaningful, in fact potentially even more so; for example I’m sure Eir would be thrilled 🙂