I've been wanting to make a fan mount for my MSI GTX 1050. This is just very rough, but shows kind of what I've been thinking. I haven't quite decided whether to support only one fan size or two. Maybe a single 60 mm fan would be sufficient. Hard to say. Still waiting on Noctua's 10 mm fans to be released.
1 x 80 x 10 mm:
2 x 60x10 mm:
1 x 80 x 10 mm:
2 x 60x10 mm: