So I am considering adding mud flaps to our bike fenders. But I would like to make them myself and would like a NICE looking one and a nice installation.
Any suggestions?
Thanks!

LDPE from plastic jugs are fine.. & flat sheet stock is sold... but for prestige there is Berthoud's leather mudflaps Berthoud parts from Peter White Cycles

I like black ones. The reasonably heavy duty plastic of 10-litre oil containers you will find in department stores work quite well. You can create your own shapes, it curves quite well to conform with the shape of the fenders and you can make them reasonably long.

However, don't go too stiff. Based on my experience, a good flexible mudflap means you won't break anything should you get it caught on another external object, and it won't break your fender should it get caught up between the fender and the wheel. It also enables you to rest the fork dropouts on the ground when removing the front wheel.

YMMV a little.

I used stair tread. Rubber is good. some prefer gasket rubber, however I can't find black gasket rubber. Rivendell sells Longboard flaps separately that will fit some SKS fenders. Truck tire inner tubes might also be a source of rubber.

Not sure which fenders you have, but Planet Bike sells mudflaps separately if you want them to look really nice. Other brands may, as well. Zip tie them on.

I made a front mud flap from a piece of black vinyl base molding, its flexible & cheap, I was able to buy a single piece at Home Depot, I use wire ties to secure it. Since we only do short tours I don't install my mud flap unless I expect rain otherwise its rides in the panier.

I used the black plastic lid from the largest size plastic Folgers container. Two stainless bolts to attach to fender. I have done this on both 45mm and 60mm wide fenders. Looks much better than it sounds. A good scissors can cut the plastic.

I like full length mudflaps that reach the ground. I've made them out of milk jugs and rubber stair tread material. Both work fine, but don't look awesome.

I also got a few pairs of Buddy Flaps and for $12 - $14 they are well worth the cost. Very durable and you get some extra reflective material on your bike if you go custom/fancy.

I have made them out of a variety of materials. I typically like leather on my vintage bikes and some form of plastic or vinyl on my more modern bikes.

Aaron

+1

Planet Bike mud flap on SKS fender. They cost $6.00 for a pair including shipping. A couple of pop rivets hold them on very securely.

Thanks for the replies! Stopped by the local hardware store, not the big orange box!, and bought a black stair tread. Made up a pattern and cut them out. I used aluminum pop rivets with a backing washer to install them. I just made them from the front. Have enough material so maybe I should make rear ones also.
We just came back from a cross country tour and we are heading out on a short ride on the GAP with relatives who have never toured. Thought this would be a good chance to see how the flaps perform. Also the relatives!

Please post some photos so we can see take a look at what you did.