Regarding leather crafting, some ideas that are new and worth exploring could include sunglasses cases or passport wallets.
Beginner Leather Projects - Creative Inspiration and Lists
Leather Craft Ideas - Inspiration for Your Next Great Project
Top 10 Projects to Make with Leather Scraps
Embossed Leather - Raised Elements for Style and Function
Is Leather Edible? - A Mix of Science and Stories
Burnishing Leather - Types, Gums, Waxes, Oils, and Methods
Leather Craft Ideas - Inspiration for Your Next Great Project
Carved Leather - A Look Into the Art, Style, and Skills
DIY Scrap Leather Projects : 9 Steps (with Pictures) - Instructables
We wrote a book! 20+ DIY leather craft projects - Walnut
33 Easy Halloween Crafts You Can Make in a Day
Leathercraft: Leather carving for beginners - leather craft ideas
60 Leather Craft Ideas You Probably Never Thought Of
78 Painting Ideas To Inspire And Delight Your Inner Artist - Chalkola - Chalkola Art Supply