I remember most of these despite being a 90s child.
We used to sing a Christmas one which went:
Come and join the celebration
It's a very special day
Come and share our jubilation
There's a new king born today
and when I was really little the first two words always sounded like "Carman" to me - I thought it was somebody's name, and in the Disney film of the Aristocats, the woman who owns the cats dances around to some music and says "Oh Carmen, my favourite opera!" and I thought it was the same thing 
I remember the one on the first page about a knight returning home with valour - this was one we sang at our second primary school as a treat if we had been especially good 
I loved the love is like a magic penny one, though I was a bit confused and remembered thinking if that means that if I share my Piggo (soft toy pig I slept with) and lend him around, I'll end up with lots of him, but actually I don't want lots, I only want him, and I don't want to share him either :( - but feeling that this was somehow selfish!
The weirdest one was at my first primary school in about year 5, which would have been 1998. I posted about it ages ago on facebook and nobody remembered it except a few people from my school. We came to the conclusion one of the teachers had written it! It went on about how we'd had the stone age and the ice age etc etc and now things were great because we were in the age of the chip! (And then got confused with itself as to whether it meant computer chips or potato chips. Possibly this was meant to be ironic but it was lost on a 10 year old.)