The spelling "picnicker" with a "k" is a commonly used alternative that reflects a phonetic pronunciation of the word, emphasizing the hard "k" sound in "picnic." It is a variation that has become accepted over time through common usage.
The Bull and the Picnickers - 1902 was released on: USA: September 1902
"Picnickers" was the answer.
Yes , with a "K" .
There is no standard collective noun for a group of picnickers but some research found a reference to a litter of picnickers ("A Litter of Picnickers and Other Nouns of Assemblage" by Bruce Ogilvie and Rachael Coomes).
Picnickers from Washington
The same way you spell it in English, k. But it isn't a very commonly used letter in Spanish.
YOU SPELL it K I T C H EN
Lunatic. (No k)
kay
The solution was Picnickers.
p-i-n-k
With a "c" not a "k"... vection