Randomness help

ok,how do i make an event give you a random item from a set  few?like,in golden sun,the lost age when you give yallam smithy something?

ie:give a guy some iron,he radomly picks somethin and gives.

also,i need help making a mining system,what is the best form of animation i could do?and how could i make rocks give random ore?(see above)

thanks in advance

For the random item thing, go to the change item command but
instead of choosing a specific item, create a variable.

ok,could you explain a bit more detailed please?

Put the variable set from #1-3. Then make a seperate case for each stating that if you land on #1, you get a potion.On #2, a sword. Or what ever you want
the items to be.

A bit more easy to understand is-
1.Make a variable
2.when you talk to the guy(give him an item), set that variable to random number between 1&3 or whatever.
3.Use a conditional branch for after that, making it so that 1 giets you a potion or whatever(just as monster doog said).
4. After that, your done.

ok,so:
variable of 1-3
make 3 cond. branches,one for each outcome?

EDIT:ok,thanks guys,i figured it out,but with one flaw-i made a tester that said hi-then a number(of the number picked)it worked once,but then it would only say hi,never picking a number again.i wanna make lots of random things,like for a mining system.ihow do i make it repeat the vareiable check?

Roger that