Yes. Indra had other weapons besides Vajra which was made from the rib cage of Sage Dadhichi. One of them is a bow named Vijaya. This is the bow used by Karna in the Kurukshetra. The first owner of this bow was Indra. Karna explains the history of this celestial bow to Duryodhana.
Below is an excerpt from Karna Parva section 31.
My bow, called Vijaya, is the foremost of all weapons (of its kind). Desirous of doing what was agreeable (to Indra), it was made by Vishakarman (the celestial artificer) for Indra. With that bow, O king, Indra had vanquished the Daityas. At its twang the Daityas beheld the ten points to be empty. That bow, respected by all, Sakra gave to Bhrigu's son (Rama). That celestial and foremost of bows Bhrigu's son gave to me. With that bow I will contend in battle with the mighty-armed Arjuna, that foremost of victorious warriors, like Indra fighting with the assembled Daityas. That formidable bow, the gift of Rama, is superior to Gandiva. It was with that bow that the Earth was subjugated thrice seven times (by Bhrigu's son).
It is possible that there are many bows made for Indra by Vishvakarma besides this bow Vijaya. In the section 82 of Karna Parva it is mentioned as below.
Shooting his shafts with that large and extended bow of his that resembled the bow of Sakra himself, the son of Adhiratha looked resplendent like the sun, with his multitude of blazing rays, within his corona.
So we can assume that there are many other bows owned by Indra which resemble the Vijaya bow.
Indra also has an excellent golden chariot. Indra sends this chariot for Rama to fight Ravana in the battle field.
रथेन मम भूमिष्ठं शीघ्रं याहि रघूत्तमम् || ६-१०२-७
आयूय भूतलं यातः कुरु देवहितं महत् |
rathena mama bhūmiṣṭhaṃ śīghraṃ yāhi raghūttamam || 6-102-7
āyūya bhūtalaṃ yātaḥ kuru devahitaṃ mahat |
"Go quickly with my chariot to Rama, who is standing on the earth. After reaching the earth, invite him to take his seat in the chariot and carry out a great service to the gods."
Here is the description of the same chariot:
Then came the glorious and excellent chariot of Indra, having variegated body decked in gold, which was fitted with hundreds of tiny bells, with its pole of cat's eye gems shone like the morning sun, yoked to excellent green horses, having golden chaplets on their heads, having white whisks, covered with nets of gold, shining like the sun and bearing a flag-staff raised on a golden bamboo. Ascending the chariot, as enjoined by Indra and descending from paradise, Matali approached Rama.
Indra has a noose which is mentioned in the Rig Veda and the Atharvana Veda.
In Rig Veda Mandala 7 Hymn 104,
13 Never doth Soma aid and guide the wicked or him who falsely claims the Warrior's title. He slays the fiend and him who speaks untruly: both lie entangled in the noose of Indra.
In Atharvana Veda Kanda 8 Sukta 4 mantra 24 which is a prayer against enemies.
24 Whatever, etc. Let him not be freed from the noose of Indra-
He also wields a net named indrajāla with which he has slain millions of dasyus.
It is mentioned several times in the Atharvana Veda Kanda 8, Sukta 8.
7 Great is thy net, brave Indra, thine the mighty match for a
thousand, Lord of Hundred Powers!
Holding them, with his host, therewith hath Indra slaughtered
Dasyus a hundred, thousand, myriad, hundred millions.
8 This world so mighty was the net of Sakra, of the Mighty One:
With this, the net of Indra, I envelop all those men with gloom.