total eclipse stamps

[asakiyume]

I thought these stamps were just cool because hey: cool image! Black and eclipse-y. I've received some on letters and I'd recently bought a sheet.



But then missroserose sent me a letter with this stamp and pointed out THAT IT CHANGES WHEN EXPOSED TO HEAT.

And I tested it, and it's TRUE. if you expose the stamp to heat, the silhouetted moon suddenly becomes pale and reveals all its features. SO COOL.

What a fun thing for the post office to do. Thank you, USPS.

Comments

[sartorias]

I totally have to get some!

[asakiyume]

They are *so cool*.

I saw a comment online about them not working, but they totally did for me. I didn't try to change them with just my body heat, though; I held them over a just-turned-off electric burner. My hands are always so cold they'd never warm a thing.

[missroserose]

I think they've gotten less sensitive with time, although I usually have cold hands too so it's harder for me to say. Brian bought me a sheet shortly before the eclipse, and I seem to remember them changing just from my breathing on them then, but now (some months later) I have to breathe on them a few times. Clever idea with the burner, though. :)

[asakiyume]

It could be too that some sheets work better than others, maybe? Anyway, your one that you sent definitely worked!

[ivy]

That was my thought too! !!! followed by a desire to run to the post office... but it's Sunday, heh. Tomorrow!