This is made of balsa wood. If the final result has remotely similar properties to balsa, it is not going to be able to come anywhere near cutting you - balsa's

This is made of balsa wood. If the final result has remotely similar properties to balsa, it is not going to be able to come anywhere near cutting you - balsa's a very soft wood. Of course if the final result has remotely similar properties to balsa it would also mean that you could just about break it with a hard enough sneeze. Balsa's a very soft wood. (Though now that I look at the actual abstract it's probably stronger than the chunks of balsa wood I learnt to carve as a kid: "high toughness (3.03 MJ m-3) that is 3 orders of magnitude higher than standard glass (0.003 MJ m-3)" - so maybe you could indeed do some serious damage with shards of clear balsa.)