I found this object while unpacking. I know what it is, even though I haven't had reason to use it in, oh, 16 years or so.

Do you know what it is?
(The thing on top is a plunger which presses straight down, and springs back up when released.)
Identified first by
kyroraz in comments!
no subject
Date: 2008-08-14 04:49 pm (UTC)