Order a marking knife as usual. Keep in mind that demand is very high for these things. So you'll need to be quick!
If you are successful in purchasing a knife, drop me an email letting me know which one you purchased. (This step is not completely necessary as I'll be cross checking everything regardless. It just makes my life easier finding your order 😉 )
I will remove the blades from the box and send everything else as normal. You will need to ask someone who is over 18 to purchase the blades for you elsewhere.