Digitally Designed Image Portraying a Joyful Toothpaste Tube Character

Create a digitally designed image portraying a joyful toothpaste tube character adorned with a dreamy rainbow palette of pastel hues. Set the character against a gentle, off-white background to enhance its whimsical charm. Across the tube’s surface, the phrase "always brush" is displayed in playful cursive, promoting a caring attitude toward dental hygiene. The tube’s cap features a shiny metallic finish that provides an elegant contrast to the smooth, satin-like texture of its body.