Quoted from Tuna_Delight:I recently had two bowling pins (#'s 2 and 4 positions) snap off within a couple weeks of each other after approx 6 months of play. I've purchased replacements and extra pins from DP, but they are taking forever to arrive so I decided to try gluing the pins back together as another TBL owner told me he had done this.
I've added reinforcement glue around the neck of the two glued pins as well as the three other pins In the two affected rows to hopefully strengthen them somewhat against further breakage. I'm reinstalling them today; we'll see how well they hold up.
Perhaps it would be a good idea to drill holes in both ends and additionally connect the parts with a piece of wire!?