$42 Contribution significance

For some reason, one of my old email accounts is on the Trump campaign's email list. I get a few emails every day from them, usually along the lines of "I looked over my list of donors today, and I was shocked to see that you weren't on it!"

Most of it is what you'd expect, I suppose, but I'm puzzled by the fact that it usually mentions a contribution of "$42 or more." 42 seems like an odd unusual number to me. Yes, of course, it's the Answer to the Ultimate Question, but that doesn't seem to apply here.

Does a $42 campaign contribution have some significance? I've googled it without success.

via International Skeptics Forum https://ift.tt/3ldPggj