http://www.nolimitsdevcenter.net/i19244
http://www.nolimitsdevcenter.net/i19309
http://www.nolimitsdevcenter.net/i19310
http://www.nolimitsdevcenter.net/i19311
And yes, Run the Plank! is just a project name, not the coasters.
If anyone knows how to make the sand fade into grass more effectively then what you see in the screenshots, please respond.