Is it possible for someone to pray one Eid salah and then attend another Eid salah with the intention of 2 rakats nafl?
بِسْمِ اللهِ الرَّحْمنِ الرَّحِيْم
In the name of Allah, the Most Gracious, the Most Merciful
If one prays Eid salaat, his namaz will be done and there is no need to pray a second. If for some reason one does pray a second, it will be counted as nafl prayer.
Only Allah knows best
Written by Maulana Belaal Ahmed
Checked and approved by Mufti Mohammed Tosir Miah
Darul Ifta Birmingham
 Fataawa Mahmoodiya vol 8 pg 434