Now that Christmas is over, I can safely share the Christmas gifts that I gave to my family this year thanks to Nausicaa Distribution (https://www.etsy.com/shop/NausicaaDistribution):
Euler’s equation pencil pouch:
Box-and-whisker snowflakes to hang on our Christmas tree:
And, for me, a wonderfully and subtly punny “Confidence and Power” T-shirt.
Thanks to FiveThirtyEight (see http://fivethirtyeight.com/features/the-fivethirtyeight-2014-holiday-gift-guide/) for pointing me in this direction.