Why not contact print the 35mm neg, then mount the cyanotype print in a large mat and call it fine art. Sell it for lots and lots of money.

Alternatively, mount the print under a magnifying glass.

This may seem like a total joke, but it might actually work. I have a series of portraits and landscapes I did in 6x6 (a bit bigger than 35mm but still quite small) that are mounted in tiny frames. Some are cyanotype and others are Polaroid transfer. It makes an interesting display, especially when mounted in a cluster. People have to stand real close to see so lighting is a challenge but the reviews have always been positive.