I really like the 914 four bar wheel without the butterfly cover but can't bring myself to cough up the money for the 912-911 GT button. I was asking about button options a couple weeks ago. I think ury mentioned I could cheap out and get something from Home Depot. So I did.
I bought a 3" plastic cap, cut it off shorter and make a steel disc to fit inside. I used some plastic body clips for the three screws and assembled the disc to the cap by filling the void under the disc I made with fibre glas resin. The button fits as stock and will activate the horn.
Sorry for the crappy photos. This is my first attempt I may make another one that isn't as tall.
First photoshows the disc I made on the right. I covered the outside face of the disc with masking tape. This makes trimming resin overflow easier. The white blob is molding clay to make a hole or pocket in the resin for the rubber center.
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Next photo shows the disc screwed to the horn parts covered in tape to avoid being boneded by the resin filling the void under the disc. Once the resin set I pulled the horn part off the disc and trimmed the resin. If you look closely at the photo you can see the resin around the edge.
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