online tool to design 3D printed flash drives

Hi everyone,
In 2015 September we made a website, where visitors can customize their own 3D printed flash drive case/ key ring and then they can order it.
A few days ago we launched a page for the ones, who have 3D printers. They can download stl files for 5 EUR, but we want to make a free kick off for those who really want to try this stuff.
Use the coupon code 3dprint to try as many print as you want for 1 EUR only!
Contact me here if you need help. Visit http://customflashdrive.co.uk/3d-print-your-own/
Attachment 8857
I recommend the following cura settings:

layer height / resolution: 0.2 mm

wall thickness: 0.8 mm

infill: 15%

no support is needed

combing enabled

Thanks for the information

good way to make some money :-)

basically an openscad script would do the job.