I keep trying to draft people into my conlang's army, but they never
show up for training.

Sign me up!  I'm up for anything!

(Note: I don't train on saint days, days where I sleep in, certain
Fridays, Wednesdays [the worst day of the week], days blacked out
for passholders by Disneyland, innumerable days, days that I
request not to train in advance, at least three days that I request
moments before training is to start, days considered sacred by
the speakers of five of my languages [Zhyler, Kamakawi, Epiq,
Sathir and Njaama], birthdays of friends and family, my birthday,
F. Scott Fitzgerald's birthday, the day of the Big Game, the day
of the Super Bowl, the first of the year, Christmas and the nine
days preceding it, Dia de los Muertos, Cinco de Mayo, Nikolai
Gogol's name day, Bastille Day, and VE day.  Oh, and I observe
the Sabbath [all three of them].  Other than that, I'm you're man!)

John C.:
We should have a most creative writing system contest.

They do this on the ZBB.  It's kind of like a class president
election in elementary school.

For scripts, there's always Omniglot and Langmaker.  Some of
my favorites:

The latter may be what you were thinking of.

The top one is both a writing system *and* a language.  Do
those count?  Nonlinear is also kind of tough.  I created this
system which is in desperate need of expansion that is as linear
as a game of Tetris:

It's for a set of imaginary beings that can communicate only
through Tetris.  The blocks are decided for them (at random);
all they can do is fill in the lexemes (the pictures) and the
functions (the rims of the pictures).  I guess it's still linear,

"A male love inevivi i'ala'i oku i ue pokulu'ume o heki a."
"No eternal reward will forgive us now for wasting the dawn."

-Jim Morrison