As a bike lover, I am offering my 3D CAD design services to 5 people. I did 3 ownership badges for my own bikes and they turned out well even though I chose inferior 3D print materials. It takes 3-10 hours to design a badge because I must meet specific dimensions for an item to 3D print properly and I often need to build text or logos from scratch. The white badges below were printed at Shapeways out of Strong & Flexible plastic. The silver badge was printed from their Metallic Plastic.

If you want a custom head badge and can do a simple drawing then feel free to download an order form and order example form.

I will only design a badge for a straight tube or tapered tube with an even surface.
I wont design for an organic/curved/hydroformed/carbon frame because its too much work to rebuild the surface in 3D and probably be impossible for you to measure the surfaces properly anyway.
I can design a badge that mounts via a bolt or I can design a clamp into the badge, but the larger the item the more Shapeways will charge you to print it.

My fee for the CAD design is only $90 (does not include the physical badge). I have other work to do (facebook/ttakata73) so will only offer this to the first 5 people to send a $40 Paypal deposit. Please PM me first to check if I have time for your design. The remaining $50 can be paid upon your approval. After full payment, I will upload the file to my Shapeways store (shapeways.com/shops/takyamamoto) and you can order it in any of their materials. I will also email you the 3D .stl file so you can reprint it anytime in the future.

Order Form straight tube https://goo.gl/photos/CSa6JRpdvmZ2stD76
Order Form straight taper tube https://goo.gl/photos/gSfwp9BLEoshVMzM6
Example order form https://goo.gl/photos/6r7krYgQbkKPUNWc9

Example print costs for GT Forte badge (6.8 cubic cm) https://goo.gl/photos/NQhiEmjhCoH9kU288
1. Strong & Flexible Plastic $7: not the best material but light and can work with lots of painting time.
2. Metallic Plastic $11: not worth the extra money since it requires the same painting effort.
3. Frosted Detail Plastic $28: best plastic since it takes paint easy.
4. Brass, Bronze, Stainless Steel $40-$44: best material for long term and no need to paint.
5. Silver, Gold, Platinum: too rich for me, but the option is available
6. Aluminum: has a 1.6mm minimum thickness so not good for text and is expensive.

Material Painting Notes:
1. White Strong & Flexible: Cheap so is good to test fit to your frame. This is very porous plastic and must be sealed with lots of primer paint before you attempt to apply any color paint or markers. I tried Sharpie markers before sealing the plastic and the colors ran together. Ultimately I had to seal it on both sides with spray primer before I went back and applied acrylic paint and Sharpie markers.
2. Metallic Plastic: Same porosity problems as above so not worth the money.
3. Frosted Ultra/Extreme Detail: Best plastic to paint since it is not porous, hard, and has the best detail. Best to use spray primer before any color is applied.
4. Metals: Can be left in raw finish. Also the easiest to repaint or polish.
5. Sharpie markers: Although this is the easiest way to color raised lettering I found you have to be very careful applying clearcoat over it. If you apply too much clearcoat at once the Sharpie washes out and loses its crispness. Apply many very thin coats to avoid problems.

Brompton example https://goo.gl/photos/aSb3JhFPfjhHy3Sm9
Plastic Prep Guide https://goo.gl/photos/pPZF7BQtvR6j4yqB8