Thats fab :)
One of my fav moments in Primary was when I was covering primary as the Primary president was on stake assignment (being a small branch with only 4 children we only had the primary pres and one teacher). Anyway the week before when I had been covering the children had asked if they could do coloring - I didn't have anything that week but promised they could the following week - and since the following we week were doing the plan of salvation I decided that they could color in the visuals we use and I would teach them while they were coloring - the loved it :) and it reduced how much prep work I had to do
I don't know if this will help. But I live in a tiny branch - which surprisingly has alot of singles - but there was no rep until I was called recently, and no stake activities so I took things into my own hands and with the branch presidents blessing started organising stuff with the other singles in the branch - who now some of my closest friends and I consider it a blessing to have them in my life! There is nothing to stop you having a FHE in your own home and inviting other singles to it - from you ward and the surrounding wards if you want.