Two more.. a penny is always put into a wallet, purse, or handbag when given as a gift. I don't have a clue as to the origin, but can say that even when I was a child, if my grandmother knit a purse for me AND my favorite doll, there would always be a penny in both, and to date I follow the "rule" if gifting Pennies on a coffee burner.. said to prevent your coffee from burning. Waitresses for many years, and we always did it, back then.
There are some old pre-decimal pennies used to this day inside St. Stephen's Tower in London (more familiarly known as "Big Ben"!). They're used as a counterweight in the mechanism to help keep accurate time. A link referencing this from the BBC: http://news.bbc.co.uk/2/hi/science/nature/7797818.stm Another link: http://cabbieblog.wordpress.com/2010/12/31/a-penny-for-your-thoughts/ The second link makes reference to the classic British coin rarity, the 1933 penny.
The traditional Southern New Years Day meal consist of black-eyed peas, greens and cornbread. You eat this meal to insure prosperity throughout the year. The peas represent coins, the greens symbolize dollar bills and cornbread represents gold. Anyway you also throw a real coin into the pot of peas - whoever is served this will have a special stroke of luck during the year - such as getting married, having a child and etc.