Disposable cameras.
https://s3-us-west-1.amazonaws.com/h...s_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...767#post206328
https://www.homemadetools.net/forum/...346#post165887
https://www.homemadetools.net/forum/...645#post201537
https://www.homemadetools.net/forum/...518#post193098
https://www.homemadetools.net/forum/...332#post192450
