How about $25:
https://www.amazon.com/dp/B07H89P2CJ/ref=cm_sw_r_cp_apa_glt_fabc_VSV206SPZY07V1F0T9JY?_encoding=UTF8&psc=1
I have, and love this mount. https://www.amazon.com/dp/B07H89P2CJ/ref=cm_sw_r_cp_apa_glt_fabc_CEDXMYN8C8QT1BGH3FNG?_encoding=UTF8&psc=1
It's metal and is designed to have swappable bottom plates so you can mount a GoPro or other devices.
https://www.amazon.com/dp/B07H89P2CJ/ref=cm_sw_r_cp_apa_i_l.ADFbT30WJR9