YouTube Subscribe Pack by Promak on CGguy
https://elements.envato.com/youtube-subscribe-pack-2R7VBBT
Free 
YouTube Promo Toolkit by NinjaTeam on CGguy
https://elements.envato.com/youtube-promo-toolkit-FYWX78P
Free 
Youtube Buttons Pack || After Effects by LikeThisMotion on CGguy
https://elements.envato.com/youtube-buttons-pack-after-effects-JHAJXKG
Free 
Youtube Lower Thirds || After Effects by LikeThisMotion on CGguy
https://elements.envato.com/youtube-lower-thirds-after-effects-4JVH9FL
Free 
Dynamic Youtube Subscribe Button by easygraphics on CGguy
https://elements.envato.com/dynamic-youtube-subscribe-button-K49NG43
Free 
Youtube Subscribe Reminder by Fanimation on CGguy
https://elements.envato.com/youtube-subscribe-reminder-JY4CH92
Free 
Youtube Lower Thirds And Buttons || After Effects by LikeThisMotion on CGguy
https://elements.envato.com/youtube-lower-thirds-and-buttons-after-effects-6QLZ6JV
Free 
Clean Stylish YouTube Reminder – AE by FMedia on CGguy
https://elements.envato.com/clean-stylish-youtube-reminder-ae-L6UAQ9N
Free 
YouTube Reminders Pack | After Effects by BoxOfMotion on CGguy
https://elements.envato.com/youtube-reminders-pack-after-effects-69LZBGR
Free 
Liquid Youtube Buttons | After Effects by BoxOfMotion on CGguy
https://elements.envato.com/liquid-youtube-buttons-after-effects-XT22Y9Z
Free 