I think you should link to a post explaining how to get more bitcoins, but you should not promote the use of exchanges to transform bitcoins into fiat, as it would defeat the purpose.

Great idea

I would give instructions on how to redeem the private key and maybe mention weusecoins.com

Also, don't put them all out at once or one or two people might swipe them all! Posting them gradually could also help build more excitement.

Maybe something like this will work (combining other's suggestions)

Another thing could be to make an expiration date on those offers, such as: those bitcoins must be used before [put an ISO date here] or they will be reclaimed and redistributed.

To do that, you can either keep a copy of the private key (which is somewhat dangerous if your machine gets hacked) and get the coins back at the given date if they are still at the given address, or (better) generate the transaction to send it to one of your offline wallets without broadcasting it, then broadcast it when the expiration date arrives (it will fail if the coins have been spent).

This way, you don't have to be afraid that someone could toss the paper away (or not activate the address on the board) and the coins are lost forever.

Make bitcoin redeemable for instant noodles and pizza pops.

You might link or refer to this in some way: https://en.bitcoin.it/wiki/Private_key

+1

I've been doing that for months now. "Bitcoin is better."

This time I'd like to motivate those interested to actually try it out, but devil is in the details. That is why I started this thread to get specific ideas on how to make the process friendly and interesting for the non-initiated. Would you please give it a shot?

how about this:

print the key and then cut it into a puzzle,
on the back of the paper, print some directions or hints where other parts might be,

that way, people will start asking about it, chat about it,
maybe even trade parts, if you make money large enough,
it will be fun

and if you want to help btc economy,
you can send me

that much I am short to place an order for some casascius coins