About how large are these shields supposed to be

I'm going to a medieval fair and/probably a halloween party.

Are these Greek shields the right size or am I going to end up reacting another"tiny gladius" incident.


http://cgi.ebay.com/Greek-Sea-Dragon...QQcmdZViewItem
http://cgi.ebay.com/Renaissance-SEA-...QQcmdZViewItem
http://cgi.ebay.com/Large-BRONZE-GRE...QQcmdZViewItem

The typical Greek Aspis was around 30 inches in diameter.

Is the top shield even one the Greeks used, looks like something out of TROY.

http://www.hoplites.co.uk/images/ind...middle_pic.gif

Thats the classic Corinthian Hoplite. Later shields were a bit samller, that Bull one is quite nice.

The top one looks more like the very old figure-8 body shields from ancient Greek potery - which supposedly was what was used at the time of the Trojan war. However, they had a different shape and were made of a wooden framework with hide facing.

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The one on the top is aparemtly a Theban Shield, I gues the makers of troy made it in their movie(never wanted to see it)