A while back, I made a Bic pen with a Flexi Rex attached to it ( [https://makerworld.com/en/models/581155-flexi-rex-pen#profileId-502128](https://makerworld.com/en/models/581155-flexi-rex-pen#profileId-502128) ), but it wasn't suitable for decorating a pencil. So I created this model to attach to a pencil.

The hole diameter is 7.7mm, designed for a Staedtler pencil. If you want to use it for a smaller pencil, simply thicken it with paper or tape. If your pencil is larger, you'll need to calculate a proportion and print the Flexi Rex at a scale slightly higher than 100%.

If you'd like to make your own Flexi-Rex remix, you might find the STEP file here useful:

[https://makerworld.com/it/models/488604-step-file-flexi-rex-with-stronger-links-not-stl#profileId-1231711](https://makerworld.com/it/models/488604-step-file-flexi-rex-with-stronger-links-not-stl#profileId-1231711)

All my Flexi-rex remixes:

[https://makerworld.com/it/models/771482-flexi-reindeer-rex-sleigh-santa-claus#profileId-707421](https://makerworld.com/it/models/771482-flexi-reindeer-rex-sleigh-santa-claus#profileId-707421) 

[https://makerworld.com/it/models/1926379-flexi-rex-tractor#profileId-2067504](https://makerworld.com/it/models/1926379-flexi-rex-tractor#profileId-2067504)

[https://makerworld.com/it/models/642988-flexi-rex-beer#profileId-568996](https://makerworld.com/it/models/642988-flexi-rex-beer#profileId-568996)

[https://makerworld.com/it/models/636010-flexi-rex-pumpkin#profileId-561348](https://makerworld.com/it/models/636010-flexi-rex-pumpkin#profileId-561348)

[https://makerworld.com/it/models/389655-easter-egg-flexi-rex-baby-rex-mother-s-day#profileId-494232](https://makerworld.com/it/models/389655-easter-egg-flexi-rex-baby-rex-mother-s-day#profileId-494232)

[https://makerworld.com/it/models/389625-easter-egg-flexi-rex#profileId-1231770](https://makerworld.com/it/models/389625-easter-egg-flexi-rex#profileId-1231770)

[https://makerworld.com/it/models/1926424-flexi-rex-doorstop#profileId-2067552](https://makerworld.com/it/models/1926424-flexi-rex-doorstop#profileId-2067552)

All My Other Pen Design:

[https://makerworld.com/en/models/2054914-dragonball-goku-pen-bic-v3#profileId-2218184](https://makerworld.com/en/models/2054914-dragonball-goku-pen-bic-v3#profileId-2218184)

[https://makerworld.com/en/models/2054880-dragonball-goku-pen-bic-v2#profileId-2218144](https://makerworld.com/en/models/2054880-dragonball-goku-pen-bic-v2#profileId-2218144)

[https://makerworld.com/en/models/2054847-dragonball-goku-pen-bic-v1#profileId-2218103](https://makerworld.com/en/models/2054847-dragonball-goku-pen-bic-v1#profileId-2218103)

[https://makerworld.com/en/models/1900323-little-wolf-pen#profileId-2036559](https://makerworld.com/en/models/1900323-little-wolf-pen#profileId-2036559)

[https://makerworld.com/en/models/1900311-flamingo-pen#profileId-2036543](https://makerworld.com/en/models/1900311-flamingo-pen#profileId-2036543)

[https://makerworld.com/en/models/1900296-little-dragon-pen#profileId-2036518](https://makerworld.com/en/models/1900296-little-dragon-pen#profileId-2036518)

[https://makerworld.com/en/models/1900288-pig-pen#profileId-2036506](https://makerworld.com/en/models/1900288-pig-pen#profileId-2036506)

[https://makerworld.com/en/models/1900272-shark-pen-v3#profileId-2036481](https://makerworld.com/en/models/1900272-shark-pen-v3#profileId-2036481)

[https://makerworld.com/en/models/1900265-shark-pen-v2#profileId-2036470](https://makerworld.com/en/models/1900265-shark-pen-v2#profileId-2036470)

[https://makerworld.com/en/models/1900252-shark-pen-v1#profileId-2036455](https://makerworld.com/en/models/1900252-shark-pen-v1#profileId-2036455)

[https://makerworld.com/en/models/1855772-beer-mug-pen#profileId-1984316](https://makerworld.com/en/models/1855772-beer-mug-pen#profileId-1984316)

[https://makerworld.com/en/models/1855700-spider-pen#profileId-1984234](https://makerworld.com/en/models/1855700-spider-pen#profileId-1984234)

[https://makerworld.com/en/models/1855597-bat-pen#profileId-1984107](https://makerworld.com/en/models/1855597-bat-pen#profileId-1984107)

[https://makerworld.com/en/models/1855588-flexi-bat-pen#profileId-1984092](https://makerworld.com/en/models/1855588-flexi-bat-pen#profileId-1984092)

[https://makerworld.com/en/models/1855534-pumpkin-pen#profileId-1984037](https://makerworld.com/en/models/1855534-pumpkin-pen#profileId-1984037)

[https://makerworld.com/en/models/587799-tractor-pen#profileId-509035](https://makerworld.com/en/models/587799-tractor-pen#profileId-509035)

[https://makerworld.com/en/models/581155-flexi-rex-pen#profileId-502128](https://makerworld.com/en/models/581155-flexi-rex-pen#profileId-502128)

[https://makerworld.com/en/models/580162-beehive-pen-hexagon#profileId-500995](https://makerworld.com/en/models/580162-beehive-pen-hexagon#profileId-500995)

[https://makerworld.com/en/models/516724-deathly-hallows-pen#profileId-810023](https://makerworld.com/en/models/516724-deathly-hallows-pen#profileId-810023)