Yup. A swan and red lions on the first one I saw, which is particularly old and passed down in the family.

Edit: Just took a look for the picture. The crest is actually a swan atop a knights helm, and the red lions are on the shield of the coat of arms. I can't make out the inscription at the bottom of the coat of arms. For anyone wondering, the crest is the bit at the top of the shield(things like helmets, crosses, ships, etc usually depending on what the person did, in order to receive the crest/coat of arms IIRC), and the whole thing with the crest, swirly bits on the outside, and shield with whatever pictures are inside that, is a Coat of Arms.

Coats of arms were only given to aristocracy and people who had done great things to be granted them, at least in the UK. Other places were different.