First up, a 2013 "Panda".
These have a serious following, as they are absolutely gorgeous coins.
Second, a "Strategic Reserve" 1oz round. These have some history behind them. In the 1970s, the Hunt brothers along with a few other investors made a significant effort to corner the world silver market - and succeeded, with holdings of about 1/3 of the world's silver - at least on paper. The market and government made some rules changes, and the US Government decided that silver was no longer a strategic metal. Accordingly, they started releasing some of their holdings for sale, both to private mints and the US Treasury. (See "Silver Thursday" for the market effects.) The Continental Coin mint picked up a significant portion, and in 1981 struck the "Strategic Reserve" series from that silver. There are 1oz rounds and bars, 5oz bars, and 10oz bars... I'm still looking for a 1oz bar. ;-)
And finally, a 1921 Morgan dollar - the last year of mintage.