I wanted some additional clothing/accessories without yet going too much overboard (maybe will revisit it after finishing the course and add proper clothing to the poor Ogre). Plus I wanted to make them as simple as possible in order not to add too much complexity in the future.
This is what I came up with:
- nose bone
- earrings
- spiked shackle
- similar shackle to the one showed by grant
Thanks to @FedPete for the inspiration for the spiked shackle 
Edit. Added more earrings:
