part timer

Aircraft chaff basically is lots of bits of aluminium foil dumped into the air, so that would fit.

Sorry but you can't not see the tyre!

Blimey, I think all my eyepieces are 'vintage' . Wouldn't change any of them for the world though! The big one is ex military 36mm very wide field, and my only 2". got it years ago at Leeds astromeet (also now defunct!). It doesnt have an eyecup so I tend to use a large LEGO tyre! (picture included!). Looks bonkers, but works really well and is almost made to measure. Some others came from here. Seem to recall buying the 10.5 from F15? The !.25" set are :- Tal 25mm, TV Plossls in 17, 13 and 10.5 and a Baader Ortho.