Your monastic tradition has blurred the lines of art and war. Seeing the instruments of both as one and the same. You can use your glass blowing kit to craft special monk weapons that break and leave shards of glass impeding your enemies. These glass weapons are not considered the types of weapons that are modeled after when determining proficiency. Due to the difference in weight and balance of the material, proficiency in glass blowing makes you proficient with these weapons. The amount of time you spend crafting you weapon will determine the weapon you craft.