Not sure if anyone is interested as there are not many games that support this, but 3DS XL Circle Pad Pro which is normally £19.99 is only £5.86 at ShopTo at the moment, the Circle Pad Pro for the original 3DS is down to £3.85.
Postage in the UK is free and non tracked delivery to other countries is cheap too, here are the links if anyone is interested:
3DS XL Circle Pad Pro
3DS Circle Pad Pro
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