As it’s a long time to wait til Christmas from his birthday, why not suggest you delay giving him a gift until later in the year, ie the summer or autumn. At his age the parents may not have a clue about what may be suitable ideas as the child grows and develops, and they might seem more appreciative of a gift when others aren’t buying new things for him.
With two of our grandchildren, who each get inundated with several gifts from extended family at Christmas and birthdays, we wait until a more expensive larger item would be enjoyed by the children and buy that instead as a combination present, such as a swing/slide combo one year and a large swimming pool last summer. The children are happy and the parents don’t have the financial outlay of an enjoyable plaything.
Of course, these purchases are made in collaberation with the parents, not the children.
For another two who lives overseas, we buy them a one year family pass to a zoo or a stately home, etc. for multiple family days out, and this is appreciated as the cost would be prohibitive to their parents.
Finally, the other two who are that much older now get Amazon gift vouchers so they can choose their own gifts, even though we see them most frequently.
Please don’t be disappointed as I suspect the parents have too many relatives asking for suitable gift suggestions, so delaying until later in the year means a gift of something more age appropriate as he grows, rather than geared for the present 1 year old