Alternative Developing

Cyanotype-The cyanotype, also known as a blueprint, is considered among the easiest of all the historical methods. Dating from 1842, this classic Prussian blue process is a great place for both beginners and accomplished artists alike to explore. Cyanotypes are economical, permanent, have few pitfalls, and are versatile in that a variety of toning effects are possible.

Potassium ferricyanide and Ammonium 

Anthotype Photography-A fun and easy way to make images using the juice from fruits, plants, flowers, and vegetables as both sensitizer and pigment! Practiced by Sir William Herschel beginning in the 1840’s, this method is very suited to photograms. Although anthotype prints are novel and unique, permanence of the image depends upon your choice of organic extract.
It's made by putting red wine on some paper, letting it dry then putting an negative or something (in this case a leaf) on top with glass to hold it down. Then leaving somewhere sunny for anything from 1 week to 5 weeks (I did about 10 days).
It can be done with all sorts of plant extracts e.g. spinach, nettles, poppies etc.Gum Tricolor-The cyanotype, also known as a blueprint, is considered among the easiest of all the historical methods. Dating from 1842, this classic Prussian blue process is a great place for both beginners and accomplished artists alike to explore. Cyanotypes are economical, permanent, have few pitfalls, and are versatile in that a variety of toning effects are possible.
Ammonium Dichromate,  Gum Arabic Powder,  Gelatin Sizing
Infrared-Working with reflected light in the long, infrared wave range can produce images of unexpected results with surreal visual effects. Infrared photographs have a spectacular glow and luminance, where highlights are usually diffused and contrast can be pronounced.
 with standard black-and-white film developers and chemicals (like D-76)
Mordancage-Also known as etch-bleach process, this rare and slightly esoteric process physically manipulates the silver gelatin print through acid bleaching, rubbing, and lifts. Images appear dreamlike, far removed from reality.

An acid copper bleaching solu- tion is used to bleach and dissolve away parts of the silver image