Hi craftymatt2 - Yes there is a pattern in a book written by Debbie Shore called "Sew Brilliant Bags ". In the UK it is £7.00 - $9 approx. in the US and ISBN numbers are ISBN-10: 1782212566 -- ISBN-13: 978-1782212560.
The book has 12 different bag patterns and excellent instructions. I have used it several times as I love making bags.
Also may I thank you all for your lovely comments - my granddaughters were very pleased with them on Christmas Day.