クールなサンタクロースの風刺的コーヒーマグカップのイラスト

A bold and funny Christmas t-shirt illustration featuring a cool Santa Claus wearing sunglasses, holding a coffee mug that says "Still Not Ready", sarcastic facial expression, modern cartoon style, thick outlines, vibrant red and green color palette, flat vector illustration, streetwear aesthetic, meme-style humor, centered composition, transparent background, high contrast, print-ready, no background