Not all symbols are available on all pieces. Also, not all symbols are pictured here - if you are looking for something in particular, just ask. I may already have it or be able to have it made.
The symbols vary in size from 1mm to 15mm - with the majority being in the 5-6mm range. This limits the items on which they can be placed, simply due to the size and whether it fits your desired design. Check your item(s) description for a list of available choices, or email email@example.com. If you are unsure as to the name of the symbol, just leave me a description in the comments and I'll contact you for final verification.