DIY Marbling on Plant Pots. This would work beautifully with https://www.worm.co.uk/products/conical-plant-pot-in-terracotta-and-white on the white lip trim. Use your Mother's favourite colours and plant up her favourite Plant and you have a very personalised gift for Mother's Day.
Way cheaper than buying wooden letters for everything! Make raised letters for craft projects: print out the font you want and place wax paper over it. Trace letters with puffy paint, let dry, then use mod podge to secure letters to canvas! (great step by step on how to do this, and which paint works best)