Kiddo Motors in Barcelona do things the right way. First there's the shop, probably one of the nicest motorbike-themed expensive T-shirt and jean outlets in the world. Then, when they have a party, they know how to do it. They also stock Sideburn, naturally.
Now they've built their first project bike. Kiddo Uno was originally a 1988 Honda Dominator, now it's a wonderful mash-up of styles topped with an XT500 tank. I love it. Below is a video of the assembly of the bike.