Gavin's beads

The picture below is of Gavin's new beads he was given for his first day in PSI (Jayne's hand modelling).
Each child that undergoes treatment gets a bead for their first visit, the beginning of the week, each CT scan, each proton therapy session and the end of each week. This will eventually make a necklace for Gavin to take home as a symbol of his time PSI.
The picture below is where all the kids beads are hung up beside each other. Gavin now has his own spot..