Just a minimum amount which appears to be 30 UKP.
Are you referring to the British Pound? If you're willing to spend a bit more and get your nephew something that "also" has a different kind of value, then I'd suggest looking at the "
Collectibles" board and choosing the cheapest funded and graded collectible coin that you can find
[he has to break the case, in order to get to the private key].
Note: DYOR before trusting any of the sellers!I have also considered putting it in my own name and transferring it to him legally when he hits 18. Is there any way of giving him "read-only" login rights to an account so he can check the value without being able to tinker with anything?
In addition to what Jawhead999 posted, the following feature might come in handy:
Timelock