Venerable Roger Kunsang recently published an article on the FPMT website with suggested practices to benefit Lama Zopa Rinpoche.
Here is the Hayagriva prayer and mantra:
Your pure triple faces are adorned with skull ornaments of five Buddha
Six limbs are holding weapons in the mudra of accomplishing siddhis.
In the aspect of great bliss with highly raised dignified horse head,
I pay supplication to you, the holy and powerful deity.
HRI VAJRA KRODHA HAYA GRIVA HULU HULU HUM PHAT
And here is Lama Zopa’s short long life prayer:
You who uphold the Subduer’s moral way, who serve as the bountiful bearer-of-all,
Sustaining, preserving, and spreading Manjunath’s victorious doctrine;
Who masterfully accomplish magnificent prayers honoring the Three Jewels:
Savior of myself and others, your disciples, please, please live long!
We owe so much to Lama Zopa Rinpoche and will be lost without his guidance and presence. Please exert yourself in these practices so he doesn’t leave us.