A very nice way to make your bike more like a show-bike, is with buffing all the aluminium parts.
The best way to buff aluminum is by using two different grinding pastes, fine and ultra fine.
Use always two buffing wheels for the rough and fine buffing.

There are even special wheels for buffing in to tight corners.
New buffing wheels needs to be burned before use to give better result and keep them in good shape for a long time.
The burning can be done by moistening the wheel with water. Press hard with a piece of metal while the disk is running and
keep it there until it starts to smell burned.
In Europe we have 220 and 380 volts for machines and it is saver to use the 220 volts machine because it is not that strong.
I always use old bench grinders because they have better bearings.
The stones are taken off and replaced by horns so it is easy to replace the buffing wheels.
It is very important that you can stop the machine by hand while it runs.
When a wheel grabs a part, people will automatically try to hold on to it and then it can easily injure somebody.
I always wear a tight shirt and thick leather gloves.
A tight T-shirt will prevent that the grinder can grab me, and the thick gloves prevent me from cutting and burning on hot parts.
If you want to buff a chain ring you have to mount it on a piece of plywood with the same size as the chain ring.
Otherwise buffing wheel can easily grab the chain wheel and can injure you even while wearing gloves.
The plywood will prevent that the buffing wheel grabs the chain ring and it is easier to buff it this way.
Some French bike parts are made of plastic at look after cleaning like old chocolate with a white trace.
You can buff it on a clean wheel with very light pressure and have to keep the temperature low.
It will shine up like new and stays shiny for a long time.
Sometimes you have rusty steel parts.

When you put a 3M disk on the horns you can easily take away the rust and than buff it.
I will look like chrome but it is just blank steel so it needs protection.
This can be done with car wax or clear coating.
Buffing is also a good base for chroming steel parts.

Buffing is not expensive, you just need:
An engine from an old grinder.
Buffingwheels.
Buffing paste.
Heavy duty gloves.