Can anyone tell me where I can find a eithteen and a half star block pattern to make. Knot a hard one. I have searched the internet over for one. Please help soon.

you might want to check quilterscache.com. They have all different sizes of quilt blocks.

Try http://www.quilterscache.com They have quilt blocks by size. In the category 16+ they had a few in 18 inch finished size.

and you can always blow one up.

Could you find a 9 1/2" star block and double it? 9 1/2" blocks are fairly common but I don't know where you would find a 18 1/2" star. I wanted 24 1/2" blocks for a fast quilt and increased my 12 1/2" blocks quite successfully. If you use 9 1/2" star blocks based on a nine patch grid, (for example friendship star) and instead of each component being 3 1/2", your new larger block would be working with 6 1/2" squares. Many of the star blocks do work on a 9 patch grid format. Hope this works for you.

you said it better than I. Thanks ;-)

When doubling the size of blocks, double the "finished" size of each component and then add on the 1/2" seam allowance :D:D:D