Shāngdiàn chúchuāng lǐ bǎi mǎn le huāhuālǜlǜ de wánjù.
The shop window is filled with brightly colored toys.
Tips
usage
Often slightly negative or teasing - describes something visually loud rather than tastefully colorful. Use 五颜六色 for a neutrally positive 'many-colored'.
memory
花 (flower) reduplicated + 绿 (green) reduplicated - literally 'flower-flower green-green', the image of a flowerbed in full bloom.