Behind the seams: a mistake

This month's Behind the Seams features a mistake.

My mistake is recent and has to do with the green coasters I was making. 

I put them together, only to realize that there is a huge lump in the middle.  I then used two pieces of batting and cut a hole in the middle of each one.  The first one looks nice.

But if you put a flat bottomed drink on the coaster, it has a significant tilt...way to much to be useful as general purpose coasters.  They'll work for mugs, at least.

Sigh.  I still want to finish them, but am not feeling very motivated about it.  Since this is a recent WIP, I'll also be joining WIP Wednesday.

So, what's your mistake?  Were you able to salvage the work?  Does it now give it character or is it obvious that it is a mistake?  This linky party is ideally supposed to be a subject that you can post about if you need some interesting post material.  (Or if you just find the subject interesting.)  I found that I just wasn't making enough progress on my quilts to justify another progress post and wanted something different to post about sometimes.  Here's how it works:

1) The linky part will be open for a year.  I'd like to encourage you to post within the first month, as I'll be reminding people to go back and look at the posts, but it isn't required.
2) I'll be announcing the topic and opening the party on the 15th of each month.
3) Feel free to link posts that you've written in the past.

Thanks for joining me!