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OVER 250,000 GIFTS DELIVERED
Since 2020, our studio in Florida has shipped over 250,000 gifts—and counting.
Our commitment to quality and connection is reflected in our glowing 4.8/5 rating from over 10,000 verified reviews. Every gift we send out is a step toward our goal of bringing people closer together, one gift at a time
MADE IN THE USA
All our products are made with love in the USA.
HAPPINESS GUARANTEE
This product is backed by our 100% Happiness Guarantee.
At Mallard Moon, we deliver high-quality gifts designed to bring joy and connection. If for any reason you're not 100% satisfied, just reach out. We're committed to making it right, or we'll gladly take it back.
READY TO GIVE
All our products are presentably packaged for hassle-free gifting.
SHIPPING INFORMATION
Estimated delivery times:
US: 5-7 business days.
Canada: 5-9 business days
Australia/New Zealand: 5-9 business days
UK & EU: 5-7 business days (ships from Amsterdam)
Rest of the world: 2-4 weeks
*addition 1-3 days lead time for personalized products
Please note: We currently do not deliver Canvases to PO Boxes as UPS does not deliver to PO Boxes, so please provide a different address that we can ship to.
For civil engineering enthusiasts who value both humor and practicality, this tumbler delivers on durability and everyday use. Keep Calm Or I Will Use My Civil Engineer Voice — a playful motto printed on a dependable stainless steel tumbler that moves from desk to field with ease.
- Capacity: 20oz or 30oz options to suit your beverage needs, from a quick espresso to a full day of iced drinks.
- Construction: Stainless steel with a durable powder-coated finish for lasting style and a comfortable grip.
- Insulation: Precise vacuum-insulated design keeps hot drinks hot for up to 6 hours and cold drinks cold for up to 24 hours.
- Lid: Spill-resistant lid to help prevent leaks during travel and busy workdays.
- Design & Message: Features the lighthearted “Keep Calm Or I Will Use My Civil Engineer Voice” statement that civil engineering fans will appreciate.
- Gift-ready & Use Cases: A thoughtful birthday or celebration gift for civil engineering students, professionals, or anyone who loves engineering humor and practicality.
The tumbler’s vacuum-insulated performance means fewer trips to the coffee pot or cooler, keeping beverages at the right temperature for hours. Its rugged powder-coated finish provides durability for daily use on campus, in the office, or on job sites, while the included lid minimizes spills on the move. With its engineering‑themed message, it’s not just a practical accessory—it’s a conversation starter and a genuine expression of support for a civil engineer’s passion. An ideal gift for birthdays, graduations, or simply to celebrate a fellow engineer, this tumbler blends function with personality for everyday enjoyment.
Features and details:
- Laser engraved in our workshop – permanent, fade-proof design (not printed or vinyl)
- Black powder-coated stainless steel for a sleek, modern look
- Double-wall vacuum insulation keeps drinks hot or cold for hours
- Durable stainless-steel construction built for daily use
- Clear, spill-resistant lid included
- Fits most cup holders – great for work, travel, and errands
Available sizes:
- 20oz – perfect for everyday coffee or tea
- 30oz – ideal for long days and extra hydration
