KrynnFighter's MC SMP

1. place a chest.

2.place a sign above it.

you have 4 lines on the sign

line 1: leave line blank.

line 2: put the ammount you want to buy/sell at a time.

line 3: B(ammount to sell for): (ammount to buy for)S

line 4: the item code number

(go to this site for codes) http://www.minecraftwiki.net/wiki/Data_values

Step 3: place the items in the chest.

Step 4: type /lwc -c

Step 5: click on your chest(it is now locked no one can open it but you .However, they do buy from it)