Highlighter or spoon or ball in foreskin - 25 minutes

• 00:00
• 01:32
• 02:34
• 04:07
• 05:09
• 06:42
• 07:44
• 09:17
• 10:19
• 11:52
• 12:54
• 14:26
• 15:28
• 17:01
• 18:03
• 19:36
• 20:38
• 22:11
• 23:13
• 24:46

Made just now - with either a metal spoon, or a table tennis ball, or a highlighter marker.