I started a tabletopper using red and white and white and red of one design (a medium size flower) plus black and white and white and black of another design (a very small flower). I like it so far but it needs a border or two. I would appreciate your suggestions. I'll try to post a picture of it.

I think I would put a black border and bind it in red:) Just a thought.

I think I would float it in a 1 or 2" white then whichever you want to predominate, the black or red.

If you put any one of those colors in as the border, it is going to blend in with the blocks in some places. How about a narrow strip of a really bright yellow or purple border (one and a half inches wide)? Then add a black or white one a little wider.

I saw a link of a bunch of different borders that you can make with half square triangles. Sorry, I can't find it again...

Perhaps a narrow border with all three colors in it, then the solid black or red border.

I would do a solid black