selling slingshots legal stuff help plz?

i got a great suggestion on yt!
this is the message...

Keep up the great work son. I've got a suggestion for you to improve your content on channel, You could introduce a monthly series where you take a request, make the weapon and auction it off. You start the auction at the price of total materials you used, more or less it is up to you. I think this would attract you more viewers and the viewers feel they have some "control" of the content. And viewers love merchandise, somehow they make use connected to you. Furthermore, the money you get off the auction could be used to invest in your passion.

Regards,
A fan from Singapore.
Sent to: theartofweapons

i was wondering what legal stuff would be required to sell weapons.
i wont sell offensive weapons or large stuff but more like non braced slingshots ect...
but what would happen if someone got hurt with a weapon that i had sold them???
or if the slingshot broke and blinded them??????
i need a disclaimer of something and also say like only use the slingshot with light bands ect.
also i could just not sell the slingshot with bands and it would be less dangerous?
please help me....

 

i will hopefully look into it!