👭 Personalised Funny Friendship Birthday Card – Old Friends Humour Card – “We’ll Be Friends Until We’re Old and Senile” – Custom Message Card – A6 on 300gsm Watercolour Card
 
Celebrate a lifelong friendship with this funny personalised birthday card, featuring a charming illustrated design of two elderly friends laughing together on a bench. Created on my tablet using soft watercolour brushes, this artwork has a warm, hand-painted feel that perfectly complements the playful and cheeky message.
 
The front reads: “We’ll be friends until we’re old and senile… obviously you’re already there, but I’ve still got some years to go. Happy Birthday” — a humorous sentiment that’s perfect for best friends, sisters, or anyone who appreciates a bit of lighthearted banter. The message can be fully customised to include names, ages, or your own personal twist, making it a truly unique birthday card.
 
Printed on luxury 300gsm textured watercolour card, this high-quality greeting card has a premium feel and makes a lovely keepsake as well as a hilarious birthday surprise.
 
🎨 Original hand-drawn digital illustration with watercolour style
😂 Funny friendship-themed birthday design
✍️ Fully customisable front message (names, wording, age)
📜 Printed on premium 300gsm textured watercolour card
📏 A6 size (approx. 11.2cm x 15cm)
✉️ Blank inside for your own handwritten message
📦 Carefully packaged in a protective hardback envelope
 
Perfect as a funny best friend birthday card, personalised friendship card, rude humour birthday card, sister birthday card, custom message greeting card, illustrated birthday card, unique keepsake card, and a thoughtful yet cheeky gift for someone who knows you well enough to laugh along.