Google - search images! examples:
https://www.google.com/search?q=log+cabin+layout&rls={moz:distributionID}:{moz:locale}:{moz
fficia l}&source=lnms&tbm=isch&sa=X&ei=5jUrVLqHF-3isATj7oL4Dw&ved=0CAgQ_AUoAQ&biw=1138&bih=507#rls={moz:distributionID}:{moz:locale}:{moz
fficial}&tbm=isch&q=half+square+triangle+quilt+layout
https://www.google.com/search?q=log+cabin+layout&rls={moz:distributionID}:{moz:locale}:{moz
fficia l}&source=lnms&tbm=isch&sa=X&ei=5jUrVLqHF-3isATj7oL4Dw&ved=0CAgQ_AUoAQ&biw=1138&bih=507#rls={moz:distributionID}:{moz:locale}:{moz
fficial}&tbm=isch&q=9+patch+quilt+layout
https://www.google.com/search?q=log+cabin+layout&rls={moz:distributionID}:{moz:locale}:{moz
fficia l}&source=lnms&tbm=isch&sa=X&ei=5jUrVLqHF-3isATj7oL4Dw&ved=0CAgQ_AUoAQ&biw=1138&bih=507#rls={moz:distributionID}:{moz:locale}:{moz
fficial}&tbm=isch&q=log+cabin+quilt+layout