Hi P Quilty - WELCOME to the Quilting Bee block swap.
Some participants choose color themes (red/white/blue) or fabric type themes (batiks, 30's reproductions, paisleys)
or item themes (cats, snowmen, flowers, birds), or block themes (stars, friendship blocks >>>please, if you do choose a more difficult block pattern, add a second choice of themes that would be easy enough for most any level quilter to make successfully. ) Hope this helps you in your decision making.
shirley