According to www.smartpedia.com -
"Souvenir patch/badge collecting is called scutelliphily, from Latin 'scutellus', meaning 'little shield', and Greek 'phileein', meaning 'to love', in other words the love or study of little shields, which is a neat description of most souvenir badges (usually called badges in Britain, patches in the U.S.) It is generally called patch collecting in the United States and badge collecting in the UK.
Souvenir patches/badges are usually shield-shaped, and generally contain a coat of arms, a map or a miniature view. The patches/badges can be made of any material, but are usually woven or embroidered fabric, though they can also be made from paper or, increasingly, plastic. The hobby is also known as 'stickophily', mainly in France. Other types of collectible patches/badges include police or service patches, space mission patches, scout patches, fashion patches, political and sports stickers, walking stick labels, car window pennants, pin badges, etc, etc etc. Collecting metal badges or pins, either military or civil, is known as faleristics."
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