Square or circular borders from stamps?

[RobC01]

Another newbie question: Tandy had their Christmas special on Pro stamps, so I picked up several that caught my eye- mainly borders. My question is how can I make an square or circular pattern with a border stamp? D2176 for example? Some like D2186 have the single shape (D2185), so there's some ability to adjust placement to make a curve. Am I just out of luck on the D2176 pattern?

[Rockoboy]

I am guessing all you can do, whether its a single or a multi patterned stamp, tilt each stamp a little to achieve a curve. The single will of course give a smother curve, but if they don't make both variations on a theme, what else can you do?