Congratulations to your colleague. Babywalz
does have an online option.
My advice would be to find out if they intend to shop in Switzerland or Germany. I understand that you will give the coupon so it is your choice. But, from my experience, new parents tend to shop baby stuff from over the border because of significantly lower prices.
Babywalz also has a German online shop which allows for buy-at-home gift coupons.