If I do a combined gift, I also do an individual gift. So, if I see something I know my relatives would like, I divide the cost by the number of kids, subtract it from the individual budget to get the new max for individual gifts.
Ex: $30/kid budget, and I think three kids would like a $15 game
$15/3=$5
$30-$5=$25. That’s enough for a decent gift each.
$30/kid, 2 kids, $40 LEGO set
$40/2=$20
$30-$20=$10
So, I’d likely do something small for each child, like a generic Barbie, small LEGO set, etc.