zelda oracle of ages/seasons random ring after appraised

Hi, I was playing zelda oracle of seasons on my 3ds(I bought it via the eshop) and would like to be able to make a zelda classic game with the rings that are random when you appraise them so would someone be able to make the rings script, the script for the guy to appraise the ring, and the ring box script for me. someone said here that it would involve teach ring being assigned to a random number and as soon as you appraise it then it picks a random number.