I have just found this wonderful site all about old sweets . On there you can find out what happened to Spangles and other old favourites.
Crikey! Do they deliver?
(And we have Smarties in Canada too, as Detop pointed out – the UK chocolate-drop ones, not the US fizzies. They come in small rectangular boxes.)
Ah, but being a typical toddlers’ sweet is what encourages teenagers and grown-ups to but them. Making them just like every other sweet out there will just put them in a larger market where they’ll get lost.
When I was a kid I could read really well from a very young age, but always got my letters round the wrong way. I have strong sense memories of carrying smarties tops around with me so that I could feel the raised surfaces of the letters and be reminded of which way round they should go. So the letter tops were useful, in a way that I’m sure the manufacturers never planned for.
They would be very useful to my daughter, who has the same problem, if they weren’t bloody Nestle 
Alas, a long-time Nestle boycotter.
They’d be better off changing the name if they wanted to attract a wider audience. I can’t see that going down well though.