You could use a garbage can lid for a mold for a round shield. Use modeling clay to cover the handle and make the lid smooth.
You could also use a saucer sled for a mold if you want a really big shield. If you use one of these, you can get a smoother front surface by molding the shield on the side of the saucer you sit on. Lay the first layer of strips radiating outward from the center
Don't rush the project. It needs to dry well before you paint it. It might take a week to do it up right.
See the link for some authentic round Roman shield designs.
you can make a paper mache shield
with paper mache
You use paper mache to make a foot. Your welcome.
If you know how to make paper mache you could make a paper mache heart.
The best way to make such a structure out of paper would be to use paper mache. Make your base and then cover it with your paper mache mixture.
I know how to make paper - mache out of napkins.
Making a time capsule out of paper mache is easy. Simply create your mixture and cover a box with the paper strips until the paper mache can hold on its own.
paper-mache.
Use wire coathangers, chickenwire, etc, to form the 'bones' on which to plaster the paper mache
you use paper and glue
You can make an excellent papier mache for modelling this way.
To make a Paper Mache Dragon, you need a balloon, a whole lot of toilette paper tubes, and tape. Blow the balloon up to make the body and then tape the toilette paper tubes to the balloon to make the 4 legs tail and neck. Once every thing is taped caver the dragon with paper mache. To make paper mache: One part flour, two parts water.