для пенолетов и прочих небольших моделей, использую вязальные спицы - прочные, легкие, разной длины и диаметра. при желании, легко наращиваются в длину - две спицы, между ними трубочка от чупа чупса на клей+погреть. пока непритностей не было. тьфу тьфу 3 раза…
я скрепки разгибал.
Для пенолётов прочности тяг не надо, поэтому хватает.
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