Inkpen Tracker Bands

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I'm constantly misplacing my ink pens at the office. I set one down somewhere, and then I find myself without a writing instrument when I need it next time. Where do they disappear to? I needed a tracking device. I thought I'd use some NinjaFlex filament I bought from Maker Geeks http://www.makergeeks.com/ to strap my pens so I could identify them if I saw them again. Just like scientific researchers do to track animals in the wild. I measured various writing instruments on my desk and used 123D Design to create flexible bands that fit them perfectly. If you need a size not listed, they can be scaled up or down to fit your needs using your slicer software. Print Settings: Printer Brand: Printrbot Printer: Printrbot Plus Rafts: No Supports: No Resolution: 0.3mm Infill: 100% Notes: I slowed the bot way down to 10mm/sec, no retraction. I printed at 230C on a Kapton bed wiped with a glue stick heated to 70C. I use this NinjaFlex adapter I found http://www.thingiverse.com/thing:439617 to coax the filament into behaving itself. How I Designed This Designed with 123D Design I started with a cylinder 4mm tall and 2mm larger than the ID of the band I wanted. Then I created another cylinder 10mm tall and the exact size of the ID of the band I wanted. I then snapped the smaller one onto the larger one. Using the move tool, I moved the smaller one down through the larger one. I then used the Combine/Subtract tool to cut the smaller one out of the larger one, creating a band.