ganesa-musaka
Various Bija Mantra for Ganesha. Note that the dhyana bija is the second syllable like गं (gaṁ) or गः (gaḥ). There are twelve such mantra for each of the Rashi having the twelve vowels.
ॐ गं गणेशाय नमः
om gaṁ gaṇeśāya namaḥ

ॐ गां गणेशाय नमः
om gāṁ gaṇeśāya namaḥ

ॐ गः गणेशाय नमः
om gaḥ gaṇeśāya namaḥ

This is different as it takes another step forward in the Bija.
ॐ ग्रां गणेशाय नमः
om grāṁ gaṇeśāya namaḥ

14-syllable | 2nd house Ketu or artha trikona
ॐ ह्रीं गं ह्रीं महागणेशाय नमः स्वाहा
om hrīṁ gaṁ hrīṁ mahāgaṇeśāya namaḥ svāhā

14-syllable | 2nd house Ketu or artha trikona
ॐ ह्रीं ग्रीं ह्रीं महागणेशाय नमः स्वाहा
om hrīṁ grīṁ hrīṁ mahāgaṇeśāya namaḥ svāhā

10-syllable | Mahanarayana Upanisad 10th house or artha trikona
ॐ महागणपतये नमः
om mahāgaṇapataye namaḥ

Radhika Pujita Ganesha Mantra
ॐ ग्लौं गं गणपतये विघ्न विनाशिने स्वाहा
om glauṁ gaṁ gaṇapataye vighna vināśine svāhā

That magic mantra which removes the death and such energies that cause terrible fears. If you are afflicted, then do this and you will be protected from terrible dangers.
ॐ मं मूषिकाय गणाधिपवाहनाय धर्मराजाय स्वाहा
om maṁ mūṣikāya gaṇādhipavāhanāya dharmarājāya svāhā

Shiva Purana Mantra for siddhi – sureshot success mantra
ॐ लक्षलाभयुताय सिद्धिबुद्धिसहिताय गणपतये नमः
om lakṣalābhayutāya siddhibuddhisahitāya gaṇapataye namaḥ

Badhaka Removal Mantras for 12 badhaka rashi

1
वक्रतुण्डाय हुं
vakratuṇḍāya huṁ
2
एकदन्ताय हुं
ekadantāya huṁ
3
कृष्णपिण्गाक्षाय हुं
kṛṣṇapiṇgākṣāya huṁ
4
गजवक्राय हुं
gajavakrāya huṁ
5
लम्बोदराय हुं
lambodarāya huṁ
6
विकटाय हुं
vikaṭāya huṁ
7
विघ्नराजाय हुं
vighnarājāya huṁ
8
धूम्रवर्णाय हुं
dhūmravarṇāya huṁ
9
भालचन्द्राय हुं
bhālacandrāya huṁ
10
विनायकाय हुं
vināyakāya huṁ
11
गजपतये हुं
gajapataye huṁ
12
गजानन्नाय हुं
gajānannāya huṁ