Are there stats for a thrown rock (or mug or what­ever)? I seem not to be able to find them.

Nope, no stats for rocks or impro­vised weapons. Its sup­posed to work by slightly mod­i­fy­ing already exist­ing weapons TN’s accord­ing to com­mon sense.

I asked a sim­i­lar ques­tion here: iron​thronepub​.com/​f​o​r​u​m​/​f​l​a​s​h​i​n​g​-​b​l​a​d​e​s​/​7​9​1​-​i​m​p​r​o​v​i​s​e​d​-​w​e​a​p​o​n​s , with a more detailed answer you might wanna read.

Thanks