Stuck for ideas? really?
Old school Axl:
A big belt
In terms of tops: tight fitting t-shirt OR very loose t-shirt - NO LONG SLEEVES
The tight fit would be late 80s style, the loose would be early 90s style - I say go with the first.
Straight. Smooth. Ginger. Hair. << THAT
OR hair spray it up a bit, like he had in the WTTJ video. In which case do not wear the bandana.
A few black leather and metal bracelets - not too many though
Black leather Doc Martens type shoes OR converse (NOT scene kid style)
Don't go with large boots, he didn't really wear those.
A few rings (optional- must be silver, could get away with gold)
New School Axl:
Weird stupid yellow glasses
Weird spandex thing on your head
Tin foil jacket
Pedo beard (optional)
I strongly suggest old school Axl.
They were the first band I got into. I did my research once upon a time.