The Butterfly Mug Bag is from Red Brolly. There might be a tutorial on Believe & Inspire (who now go by another name not even sure what it is), but the pattern was designed by Red Brolly.
If you click on Believe and Inspire it will take you to the new site! I will put the new name in later when Im on my laptop. Thank you for bringing it to my attention!😊
Sew Some Stuff is the new name for Believe and Inspire. The link is: http://sewsomestuff.com/2015/02/butterfly-mug-bag-free-sewing-pattern.html#comment-131841 Clicking on the blue Believe and Inspire above will take you there too. Red Brolly doesn't have the pattern on their site that I can find.
Would love to hear from you!