It's easy to buy Gladiator Helmets on eBay. First watch the safety video by clicking this link.

Roman Centurion Helmet w Red Plume Armor Gladiator STD	-	$79.98	10h 18m
Spartan Steel Helmet Knights Gladiator Medieval Armor	-	$39.18 $41.00	16h 27m
Gladiator Roman Maximus Style Helmet Armor W Spikes	-	$49.98	1d 8h 18m
Roman Gladiator Maximus Helmet w Spikes Medieval Armor	-	$89.98	1d 9h 45m
Spartan Steel Helmet Knights Gladiator Medieval Armor	-	$39.18 $41.00	1d 16h 43m
Roman Gladiator Stylized Helmet and Wood Gladius set #5	-	$79.00	1d 17h 20m
Warrior Helmet Medieval Knights Gladiator Armor		$42.99	1d 19h 4m
Gladiator Movie Helmet of Maximus Roman Steel Helm New		$64.95	2d 14m
Gladiator Roman Maximus Style Helmet Armor with Spikes	-	$74.98	2d 9h
Roman Centurion Helmet w Red Plume Armor Gladiator New	-	$69.98	2d 9h 6m
Maximus Gladiator Helmet	-	$49.00 $54.00	2d 12h 28m
Medieval Helmet Armor Knight Replica D&D Gladiator	-	$49.50	3d 16h 47m
Roman Gladiator Maximus SPIKES HELMET Medieval Armor	-	$85.95 $89.95	3d 17h 11m
Mini Roman Gladiator Desktop Display Medieval Helmet	-	$18.99 $19.99	4d 7h 50m
Gladiator Warrior Helm Helmet Armor LARP w visor	-	$39.50	5d 16h 47m
Gladiator Arena Warrior Helmet Armor Medieval Helmets	-	$56.98	5d 20h 19m
Roman centurion gladiator tunic armor helmet costume	1	$20.00	7d 18h 24m