Labor Day Weekend only – FREE Blue Bunny frozen yogurt! September 4, 2009 2 Comments Try Blue Bunny Aspen or Sedona frozen yogurt treats for FREE, this weekend only! Purchase must be made September 5th, 6th, or 7th. See rebate form for details. Print the rebate form HERE. Related Products from Amazon 2 Comments YO Adrian&Amy September 4, 2009, 6:35 pm purchase must be made in august…or september? Shelley September 4, 2009, 7:33 pm September. The blog post said August earlier…but it was a typo, and has been fixed. Comments are now closed for this post.