Celebrity Authentics is doing a signing with Loki & Thor if anyone wants to get in on it. Send-in option is available. They say it's limited to 200, so act accordingly. $200 per signature with a $75 down payment.
https://celebrityauthentics.com/shop/pre-order/tom-hiddleston-tier-1-customer-send-option/
https://celebrityauthentics.com/shop/chris-hemsworth/chris-hemsworth-tier-1-customer-send-option/
https://celebrityauthentics.com/shop/pre-order/tom-hiddleston-tier-1-customer-send-option/
https://celebrityauthentics.com/shop/chris-hemsworth/chris-hemsworth-tier-1-customer-send-option/