When my partner died he was cremated that very same day. I obeyed his request for no embalmment nor casket viewing. Under State law without embalmment the cremation had to be immediate. The final parting at his deathbed was very difficult for me.
A week later we had a memorial service for him in a packed chapel. It was to honor him, and to give his many friends closure. His photograph and ashes were there, and I had a CD played from the Houston Gay Mens Chorus, in which you could hear his wonderful bass voice. It was his favorite number.
Earlier this year the mother of the founder of Georgie's Alibi here in Wilton Manors died (a gay bar & restaurant). She was buried in Ohio, but I approached her husband and the rest of the family, and asked if they would like a remembrance here locally, where she had lived, and where she was universally loved & respected.
They agreed, and my partner & I put it together at our place. The family created a digital projector slide show about her, and the gathering was sort of like a reception, with food & drinks we arranged, and really not at all morbid, very upbeat and joyous. Her family called it a "Celebration of Life." My current main photo was taken at it, by "Pompano Bill" who's our most famous gay social photographer in south Florida.
I do think people should be remembered. Your options are many. Nothing is mandatory, nor is a classic funeral, which should be determined by the deceased beforehand. That's why my partner & I have clear instructions in legal documents about our final arrangements. We are most meticulous, if only to relieve the burden from others.
But after cremation, we have indicated nothing. If the other partner survives he can choose what to do. If we both go together (car or plane crash, whatever) we have Personal Representatives named, and they can decide. Because really we don't care. If our friends want to remember us, fine, for their comfort; if not, also fine.