I tried to find some medievals, but thought my red and green Chinese coins made a better pair: Han China Han Wudi, r. 141-87 B.C. (115-113 B.C.) AE 5 Zhu, 25.31mm x 3.1 grams Obv.: Wu Zhu Rev.: Blank Ref.: Hartill 8.6 Northern Song China Hui Zong, r. 1101-1125 (1102-1106) AE 10 Zhu, 35mm x 10.5 grams Obv.: 崇宁重宝 Chong Ning Zhong Bao. Li script Rev.: Blank Ref.: Hartill 16.408
This one has enough red and green dots to look like a mall display from a distance. Olbia, 475-410 BC, Cast AE, 25.3g 41mm Obv: Gorgoneion, tongue protruding, hair as pairs of half circles, eyebrows prominent. Rev: ΑΡΙΧ; Wheel divided into four sections. cf SNG British Museum Black Sea #387 Acquired from Frank Kovacs, January 2002, at the New York International coin show.
THIS IS X’MAS!!!... Sparta-style... LAKONIA, Lakedaimon (Sparta) AE As 5.7g, 20.3mm C. Julius Eurycles as hegemon, circa 31-7 BC RPC 1103; BMC 63 O: Head of Zeus right. R: Club; Λ-A/EΠI EY/PY-K(ΛE)/O-Σ in four lines across field; all within wreath.