I'm sharing some of the custom-made icons that I'm trying on my Elementary OS
All of them are mods of other icons (i.e. none built from scratch). I started working on this because a couple (specially lyx and sunflower) are missing in the original elementary iconset and I didn't like at all the defaults. Others are just replacements to have some fun. What do you think? they are still not published within a theme, but hopefully they will be included in eary icons in the next releases. Icons description:
Lyx (new) - A latex WYSIWYM text processor
Nuvola Player (new) - online music player
Sunflower FM (new) - An awesome dual-panel file manager
Brackets (new) - Text editor for css and html coding (ideal for customizers!
System Preferences (modded)
Pantheon Terminal (modded)
Scratch Text Editor (modded)
All the icons are scalable SVGs, so there won't suffer quality loss on size changes. They are included in a bigger svg file that I'm sharing (download button on the right).
To see them working you'll have to wait a bit... but if you want you may stay tunned at rhoconlinux.wordpress.com or include them in your own mods! ^_^.