What kind of marker to use when getting guitar autographed?

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Heya Anyone knows what kind of marker to use when getting a guitar autographed? For both electric and acoustic.

My friend might be able to meet the band from a musical cast that I really like and offered to bring my guitar along to get it autographed. Though, can just use normal Painty markers? Will it affect the finishing or something?

If bringing my electric would probably be my SG-400,if that helps. :???:

Thanks!

 

[kerplunk182]

WWRY?
Painty should work fine.

 

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hahaha! YEAH! so stupid, I met them in Singapore, then didn't think of it, then someone suggested to me after. Now they're gonna tour Bangkok and my friend's flying there to catch them perform again lol.

haha ok. Anyone tried using Painty on their guitars before? lol!