We're planning on getting the kid a piggy bank soon, but most piggy banks are pretty ugly so I went on the hunt for a mid-century modern piggy bank. The best one I found are these Norsu elephant banks. (Norsu is Finish for elephant.)
They were designed by MK Tresmer for the Finnish Union Bank and were given out to kids to promote saving. They're originally from the 1970s and are still made by the same factory in Finland today.
But I can't find a place to buy them in the States, so the hunt continues.