No. 1, Section 1, Bade Rd, Zhongzheng District
Taipei City, Taiwan, 100

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There are several penny machines (called souvenir coins "???“ in Chinese) throughout pop-up exhibitions at Huashan 1914 Creative Park. As these are pop-up exhibitions, it is possible that these machines will only be available during the exhibitions and new machines will come with new exhibitions.

Machine 1: 4x pennies for Attack on Titans exhibit (Note: pushing Mikasa anime character button outputted the same as pushing Levy anime character button for me, so only 3 pennies shown),
Machine 2: 3x pennies for Kapibarasan exhibit,
Machine 3: 4x pennies for Lulu the Piggy exhibit (100 NTD each),
Machine 4+5: 4x + 3x pennies for Otto Friends exhibit,
Machine 6: 4x pennies for Miffy exhibit,
Machine 7: 4x pennies for Uzumaki exhibit

September 2, 2023: I found 6 machines: all coins are 50 NTD (~USD 1.50) each unless other indicated.