Each pilgrim needs to have their own credential if they want admittance to albergues. My kids enjoy getting their stamps - but are not as obsessive as some I've heard of who like to stop at every bar and church and shop..... I guess my kids pour their energies into their journals (and their credentials get tucked in the back for each trip)
I have only made one fancy one for this trip - I'm walking for two plus weeks longer than the rest and so they have the bare bones model!
I've always used the official ones from SJPDP, but for next time I have already purchased 4 from Ivar, they look nicer than the French ones, and the wording is in Spanish not French.
The kids are learning Spanish at school, one is in Kerikeri and the other Whangarei, so by the time we leave for Spain they will have nearly 2 years of Spanish tuition. The Camino trip has motivated them to focus on their Spanish lessons. They've seen the new credentials and are excited about the concept of filling them up. I bought a map this time, and it shows all the Caminos, they can see where they'll be walking. They have already looked up all the words printed in the credentials with the help of their teachers, and are excited to be able to understand it.
Your custom-made one is impressive, and such a great memento, you're very talented.
The grand-daughter is more like me, interested in art and photography, so she might be interested to make one for herself, she has the official one as a template, and she's very meticulous and a great reader so she can research each stage. And there is plenty of time. I'm not sure about the grandson, he's more of a rugby sports type, like his grandfather.
What a great idea.