I often design puzzles and games for parties.
Here's a small sample:
The
<a href="http://jamespropp.org/srat.html">
Self-Referential Aptitude Test</a>
(a logic puzzle),
<a href="http://jamespropp.org/bridge.html">
Bridge Crossings</a>
(a puzzle based on hidden words,
in the cryptic-crosswords sense of the term),
and
<a href="http://jamespropp.org/capital.html">
Capital Punishment</a>
(a puzzle based on geography and bad puns,
created with some other folks).