I love it and it’s under $15. I found it on amazon:
Buffy the Vampire Slayer Spike Out For A Walk Bitch Tumbler Cup https://www.amazon.com/dp/B07B2J7X4Q/ref=cm_sw_r_cp_api_i_FCKFZ6771A9W7HQGBEMG?_encoding=UTF8&psc=1