On Purim we're supposed to engage in מִשְׁלוֹחַ מִנוּת, the sending of heresy to our fellow Jews. What are some pieces of heretical literature that are appropriate for sending on Purim? Or ones you'd like to receive?
What you should do is combine this with matanos la'evyonim, by sending to poor people. That way you're making the heretical declaration (at least according to Turnus Rufus, Bava Basra 10a) that even though Hashem isn't providing for them, you are.
All I can do is tell you the following true story:
When Rabbi Meir Leibush Malbim arrived in Bucharest as its chief rabbi (and I believe chief rabbi of all Romania), the city's "progressive" Jewish population was excited that a Hebrew grammarian and Biblical thinker would take the post. They were quite dismayed to find that despite Rabbi Malbim's outside-the-box Bible commentary, his ritual observances were quite traditional. One year they sent him mishloach manos containing pork and crabs, with a note:
We, the Enlightened population of Bucharest, hereby send our choicest delicacies to our esteemed chief rabbi.
Rabbi Malbim responded by sending a small copy of a portrait of himself:
Gentleman, thanks for the picture of you; here's one of me.
Yesterday (on Shabas parashas Zachor, erev Purim), I asked a local rabbi a similar question, how one can best fulfill the obligation of mishloach minus. He said via the Internet.
I wanted to point, that despite the custom to send manos via a shliah, sending heresy could be done only by the sender himself. Because, there is no shliah ledvar aveira.