http://www.knex.com/sixflags/
Free sample building bricks

CALLING ALL KIDS AGES 5 - 12!
Receive a FREE Sample with Genuine K'NEX Bricks. NO PURCHASE NECESSARY.
Limited to one per household while supplies last.
Send us the name of the last brick building set you received, including sets from LEGO ®,
MEGA BLOKS ® or any other brick building system, and we'll send you a free K'NEX
sample with Genuine K'NEX Bricks. Enter now... start by filling out the form below!

You just enter child's age, prior building kit name, and email info...

Thank you for requesting a free K'NEX sample. We need your parent's approval before we can send your free K'NEX sample. So, this request has been sent to your parent's email address. Your free K'NEX sample will be mailed once your parent has indicated his or her approval, and responded to this email.
Limited to one per household while supplies last.

Once you get the email you put in your name & addy, not child's...

Thank You, your entry has been submitted.
Please allow up to six weeks for delivery of your free K'NEX sample....

Thanks! Grandson will love this.

My daughter will be looking forward to getting the mail. Thank You.

These arrived today...65 piece set... Looks like it's still available...

Thanks, I just signed up!

Got a 23 piece set today. Thanks.

recieved 45 piece set friday and these are very small pieces i recomend supervising while this is being played with

Got a 15-piece set in the mail today, looks like it will make a helicopter.

Thanks, just signed up.

Made a helicopter here