I'm reminded of the Klein Bottles site: http://www.kleinbottle.com/ http://www.kleinbottle.com/ I could have sworn he did custom work, but I can't seem to see

I'm reminded of the Klein Bottles site: http://www.kleinbottle.com/ http://www.kleinbottle.com/ I could have sworn he did custom work, but I can't seem to see it listed on the site anywhere now. Still an awesome present for a mathematician though.