(I made other modifications, but they were like, "infinite crafting if you have spare materials" which is obsoleted by the ability to clone stuff anyways, so the primary list is down to 20.)
http://rydian.net/trainers/Terraria_1.1.zip
- Run Terraria.
- Run the trainer (it'll find Terrara.exe and attach automatically).
- Read the "about" text to note when to enable codes.
- Have fun.