Coasters Anyone?

When I started learning crochet, the first project that I did was a coaster, that is a free pattern from Anchor.  These are the first three that I made:

But since it's so fast to make a coaster (instant gratification, isn't it?), I did another in the same color as the one in the middle above.

Then two or three weeks I ago, I did this for my boss because whenever he has his coffee, he made use of table napkins as coaster.  This is bigger than the previous three because I did not finish all the rows (9 rows total) back then, just up to row 6, but with this one, I extended up to row 8:

Then after finishing this doily,

 there are still some thread left so I decided to make another coaster:

Here are the coasters together:

And when piled, they looked like pancakes.  See how uneven my tension is?

This is all for now my friends.  Have a nice week ahead and take care everyone :-D