Легкий способ:
#your rails >= 3.1 (i was done it with Rails 5.0.0.1)
o = Model.find(id)
# (Range).each do |item|
(1..109).each do |item|
new_record = o.dup
new_record.save
end
Или
# if your rails < 3.1
o = Model.find(id)
(1..109).each do |item|
new_record = o.clone
new_record.save
end