It's that time of year again

Nestle's Halloween-themed chocolate bar packages

Many firms release limited edition products. This time of year Starbucks offer pumpkinspice lattes. (Which after relying on chemistry for many years, now finally contain actual pumpkin.)

But these chocolate bars are exactly the same as the bars that Nestle sells the rest of the year. The only that changes is the packaging.

Nestle can't really be faulted for the effort. The names are somewhat clever. (Coffin Crisp is probably the best of the four.) It just goes to show how big Halloween has become as a focus of consumer spending.