Reddit mentions of Sharpie 44101PP Magnum Permanent Marker, Chisel Tip, Black, 1-Count

No, this Sharpie will do fine.

Definitely white. and as /u/MensLeagueGretzky stated, that crest will fill up quick. And if the guys sign small to accommodate the full team, their signatures might look cramped and shittier than they would otherwise be if given the whole front of the jersey to sign.

And black sharpie wouldn't look that bad over blue, but white is just an ideal option for a signed jersey.

Personally I would also just leave the crest clean, but that's up to you. Maybe save it for the bigger names on the team or if you have the chance down the line for legends like Potvin, Trottier, etc.

Or just let Rick Dipietro slaughter it with the thickest sharpie available on the market http://www.amazon.com/Sharpie-Magnum-Black-Permanent-Marker/dp/B0005KC7A6

Unless you just wanted the current roster on it, which is understandable.

I think you needed bigger pens ;-)

https://www.amazon.com/Sharpie-Magnum-Permanent-Marker-1-Count/dp/B0005KC7A6/ref=pd_lpo_vtph_229_lp_t_3/141-1244831-9653736?_encoding=UTF8&psc=1&refRID=X36HJ9CF3776QFJHRZMS

http://www.amazon.com/Sharpie-Magnum-Black-Permanent-Marker/dp/B0005KC7A6

If you want to remove the labels quickly and cleanly, run a heat gun over them for a few seconds and they peel right off. I usually either remove any sticker with a bar code or redact with a big-ass Magnum Sharpie. https://www.amazon.com/Sharpie-Magnum-Permanent-Marker-1-Count/dp/B0005KC7A6

Ye' need yerself one ov these!

https://www.amazon.com/dp/B0005KC7A6/

I drove by the march and the majority of the signs were illegible, so I wasn't sure what they were marching for.

https://www.amazon.ca/gp/aw/d/B0005KC7A6/ref=mp_s_a_1_1?ie=UTF8&qid=1485020164&sr=8-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=sharpie+magnum&dpPl=1&dpID=41dIGF5UrGL&ref=plSrch

This, my friend, is what you need:
http://www.amazon.com/Sharpie-Magnum-Black-Permanent-Marker/dp/B0005KC7A6/