Recommendations for chocolate for the tops of 48 fairy cakes?

I use the cheapest supermarket chocolate, melt it and then mix it with icing sugar. I don’t weigh the ingredients, but do it by eye and texture. If it’s too stiff add a little warm water. I then fill an icing bag and pipe a swirl on top of the cake, sprinkles etc on top of that.

Ohhh! I missed out making the butter icing bit, sorry. Melted chocolate mixed with butter icing, not just icing sugar!
Listening to the news while typing doesn’t work!

Cocoa mixed with tiny bit of hot water then added to the buttercream.

60g cocoa 30g butter 250g icing sugar

Melt butter, stir in cocoa for 1 min. Sift icing sugar in. Stir and add a little milk to thickness needed.

You could make a ganache?
Any old chocolate, I use Aldi, melted with double cream in a bowl over a simmering pan of water.
It’s making me want to make a chocolate cake!

Many years ago when making cakes for DS2 party, I just put Smarties on top of ordinary icing.
The edges of the Smarties went frilly and looked very pretty.

DS2 is now 45 ?

I might think of making glacé icing with cocoa and just a couple of teaspoons of butter mixed in - it might be less messy than butter icing especially if it's a warm day

I made chocolate butter icing, topped off with Cadbury's twirl bites on cupcakes I made recently. They were a huge hit with the grandchildren.

Any type of chocolate or chocolate icing would suit me.

We could sample all the different types of iced cakes, Witzend, and let you know which we think would be best.

I am addicted to the Cupcake Jemma channel on Youtube. She does a chocolate butter icing.

Here are the ingredients

Recipe -
300g unsalted butter, soft
540g icing sugar, sifted
4 tbsp milk
180g dark chocolate, melted and cooled slightly

youtu.be/_-5NNytRLC0

There will be others on Youtube, but these are guaranteed to work.

For young children I don’t use butter cream or soft icing - too messy! I simply melt chocolate and put it on the cupcakes with a bit of decoration. The chocolate goes hard again and usually the children bite it off first without any mess.

My granddaughter loves the little chocolate hearts I put on top of little and big cakes. I buy then in Waitrose. I have always made a Dan Leppard fudge icing. Plain chocolate with 70% cocoa solids, golden syrup, butter and icing sugar. I always make a large stash and put it in small containers in the freezer.