Swiss here
Fnac has the colours joycon Switch if that's the one you're sister is looking for: https://www.fr.fnac.ch/Console-Nintendo-Switch-avec-paire-de-Joy-Con-Rouge-et-Bleu-Neon/a13721295#omnsearchpos=1
There are also some stores that have the Animal Crossing or the Ring Fit bundles.
NNID/PSN: Kung_Kjartan