/me proffers

my %hash = map { chomp; split /,/ } <DATA>;
print $hash{1006},$/;

__DATA__
1001,choochoo
1002,candycane
1003,sockpuppet
1004,choochoo
1005,candycane
1006,sockpuppet6
1007,foo
1008,bar
[download]

Or am I missing the point?
HTH

_________
broquaint