The design on this shirt features the phrase “Don’t Worry, I Have a Plan,” along with various scientific and mathematical equations and drawings surrounding a prominent D20 die. The D20 (a 20-sided die) is the most iconic element of tabletop role-playing games like Dungeons & Dragons (D&D), where rolling a D20 often determines the success or failure of a player’s actions.
The D20 is prominently placed in the middle, symbolizing the core mechanics of chance and fate that are fundamental to D&D and other tabletop RPGs. The numbers on the die reflect the game’s randomness, with 20 often being the best possible outcome—a “natural 20” that guarantees success.
The background features a mix of mathematical formulas, scientific symbols, and diagrams. These represent the complex calculations and strategic thinking that are often part of gaming, whether making tactical decisions in D&D, optimizing character stats, or just dealing with unpredictable game scenarios. The humorous combination means the “plan” involves dice rolling and intense calculation.
The phrase “Don’t Worry, I Have a Plan” adds a humorous layer, suggesting that despite the seemingly chaotic environment of gaming, when you are wearing the shirt, has everything under control—or at least you like to think so.
The shirt humorously juxtaposes the concept of having a calculated plan with the randomness of rolling a D20. In Dungeons & Dragons, a simple roll can determine everything, no matter how much you strategize. The inclusion of mathematical formulas and scientific symbols also makes it appealing to those who enjoy science, math, or logic puzzles, giving it a geeky charm.
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We offer worldwide shipping. All orders come with tracking and are not subject to any additional taxes (however, some international orders may incur customs duties upon arrival, depending on each country's regulations).
Orders are fulfilled on demand with excessive amounts of love and shipping from US, EU, AU, CA. Below are estimates for how long your threads will take, including printing, delivery and Shipping Fee
1. Shipping Cost (USD)
DESTINATION
FIRST ITEM
ADD ITEM
FREE SHIPPING
US
$5.99 for Standard Shipping. $20.0 for Express Shipping.
$3.00
Order from $120
Germany
$6.99
$3.00
Order from $150
Denmark, Czech Republic, Belgium and some european countries near Germany
$6.99
$3.00
Order from $150
Australia
$9.95 for Global Shipping. $20.0 for Express Shipping.
$3.00
Order from $170
Canada
$8.99
$3.00
Order from $150
Rest of the world
$9.95
$3
Order from $170
Shipping Time for Standard and Express, please read below.
2. Delivery Time
Delivery Time = Production Time + Shipping Time
Shipping Time calculated from the date that item is shipped out, not the date the order is placed.
Production Time:
Please note: The processing time mentioned does not include holidays and weekends.
T-shirt with a single print position: 1-2 days (multiple print positions: 2-4 days).
 Hoodies, Sweatshirts, Long Sleeves, or those with multiple print positions: 2-4 days
For multiple items, more time will be needed.
For All Over Print (AOP) shirts, production takes approximately 5-7 days per shirt.
Shipping Time:
Shipping Time calculated from the date that item is shipped out (after production), not the date the order is placed. (not include holidays and weekends)
 DESTINATION  Â
STANDARD
EXPRESS
US
4-8
2-5
Germany
4-8
x
Denmark, Czech Republic, Belgium and some european countries near Germany
7-10
x
Australia
9-13
2-4
Canada
4-8
x
Rest of the world
9-13
x
Important Notice: Please read carefully to avoid any misunderstandings between us and you.
Shipping time does NOT include production time.
Shipping time is calculated in business days and does not include holidays or weekends.
The shipping time listed above is an average estimate under favorable weather conditions and for urban delivery addresses. If you live in remote, rural, or isolated areas, delivery may take an additional 2-4 days.
Shipping times to Alaska, Hawaii, Puerto Rico and unincorporated territories of the United States can take additional 7 – 12 business days.
During peak seasons, shipping carriers may require extra time for deliveries, so delivery times might be longer than usual.
For international orders, the estimated timeframe above is only an approximation. Factors like weather conditions, customs clearance procedures, and shipping service quality in each country can cause delays. Some countries may require additional time for delivery. Therefore, we only commit to delivery within 30 days from the shipping date – for all destinations.
Special: For Express Shipping orders, we will begin production immediately to ensure that your order reaches you as quickly as possible.
Therefore, cancellations or order modifications will not be possible once the order is placed.
Please double-check your order details carefully before completing your purchase.
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