Add unstable jar

Items/unstable_jar.txt

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+Unstable Jar
+------------
+
+Aura: Minor transmutation
+Rarity: Common
+
+An Unstable Jar is a minor magical item that takes the form of a tall glass jar.
+Whenever someone sets down this jar without saying the codeword, it falls over.
+Whispering the codeword counts, in the interest of secrecy.
+
+The codeword is set at creation. Creating an unstable jar requires one jar and ritual components worth 10gp, and takes an hour.
+
+The jar has AC 10 and 5 HP.
+When broken, the glass shattering says the codeword.