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Happy Face USB Mug Warmer

Happy Face USB Mug Warmer

Regular price £15.00
Sale price £15.00 Regular price
Tax included. Shipping calculated at checkout.

Because cold coffee is a crime. Apparently.

This is a cup warmer. It plugs into USB. It has a happy face.
Which is ironic, considering how dead inside you probably are before caffeine.

Smiley keeps your drink warm while pretending everything’s fine—just like you at your 9am meeting.

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Mildly Important Details

  • USB-powered and emotionally supportive
  • Keeps your coffee warm and your patience lukewarm
  • Built-in smiley face to offset your personality
  • Perfect for desks, gift desks, and desks that need therapy
  • Doesn’t judge your 5th cup of the day
  • Small, cheerful, and suspiciously useful
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Happy Face USB Mug Warmer

Happy Face USB Mug Warmer

Regular price £15.00
Sale price £15.00 Regular price

International Shipping

Because fun shouldn’t have borders.

Beautifully Packaged

Because first impressions matter (even for gifts)

Designed With Love

Designed in London where creativity, chaos, and good ideas collide.

Loved Worldwide

Thousands of reviews, averaging 4.9 stars of joy

The Man Who Declared War on Beige

I didn’t set out to start a brand. I set out to fix a mood.

Everything around me felt a bit… beige — the products, the offices, the energy. So I decided to build a world where colour, humour, and design could coexist without needing permission.

Mustard was born out of equal parts curiosity and chaos. It’s proof that practicality doesn’t have to be dull, that playfulness can still have purpose, and that good design should make you smile before you even use it.

We make things that stand out on purpose — because blending in is overrated.