‘’No ‘tatoo instruments’ are used in a henna tattoo.’’
A paint brush would be an instrument, as would a stencil.
Yes, but they aren’t tattoo instruments. https://www.google.com/search?q=tattoo+instruments&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjM4Py5yfXJAhWB4SYKHdlZBVQQ_AUIBygB&biw=1024&bih=612#tbm=isch&q=tattoo+instruments+images