It's $35 if done electronically, $65 if done by mail. I rechecked their website. Tarot decks would be filed using the VA (long or short form).
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Basic Registrations
Each registration must include properly completed application form,
nonrefundable filing fee, and nonreturnable deposit.
$35 Electronic registration through eCO
$65 Registration on Form TX, Form VA, Form PA, Form SE, and
Form SR
Processing Time for e-Filing: generally, 3 to 4-1/2 months
Processing Time for Paper Forms: generally, 5 to 8 months